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86 vulnerabilities found for rancher by suse
CVE-2026-88811 (GCVE-0-2026-88811)
Vulnerability from cvelistv5 – Published: 2026-11-02 16:48 – Updated: 2026-11-03 04:55
VLAI
EPSS
VEX
Title
Rancher credentials disclosed to third-party hosts by the Rancher Manager meta proxy
Summary
Missing filtering in the SUSE Rancher Manager meta proxy could cause passed in rancher credentials to be leaked to cloud providers. This affects SUSE Rancher 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11,
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 00:00 UTC
CWE
- CWE-201 - Insertion of sensitive information into sent data
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/security/advis… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
2.15.0 , < 2.15.3
(semver)
Affected: 2.14.0 , < 2.14.7 (semver) Affected: 2.13.0 , < 2.13.11 (semver) Affected: 2.12.0 , < 2.12.15 (semver) Affected: 2.11.0 , < 2.11.19 (semver) cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* |
Date Public
2026-11-02 16:41
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CVE-2026-88810 (GCVE-0-2026-88810)
Vulnerability from cvelistv5 – Published: 2026-11-02 16:29 – Updated: 2026-11-03 04:55
VLAI
EPSS
VEX
Title
Privilege escalation in downstream clusters via GlobalRole inheritedNamespacedRules
Summary
A privilege escalation issue was discovered in Rancher Manager's role-based access control. The inheritedNamespacedRules field of a GlobalRole propagates permissions into named namespaces of every downstream cluster managed by the Rancher instance, but it was not subject to the privilege-escalation validation applied to the other permission-carrying fields of a GlobalRole. As a result, a non-administrative user could be granted, through a global role binding, permissions in downstream clusters that exceed the permissions that user already holds. This affected SUSE Rancher 2.15.2 only, and SUSE Rancher Webhook 0.11.0 up to 0.11.4, and 0.12.0 up to 0.12.1.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 00:00 UTC
CWE
- CWE-306 - Missing authentication for critical function
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/webhook/security/advis… | vendor-advisory |
Impacted products
Date Public
2026-11-02 16:21
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CVE-2026-88809 (GCVE-0-2026-88809)
Vulnerability from cvelistv5 – Published: 2026-11-02 16:03 – Updated: 2026-11-02 18:55
VLAI
EPSS
VEX
Title
Rancher meta proxy allowlist bypass leading to server-side request forgery
Summary
A security vulnerability exists in the SUSE Rancher Manager meta proxy endpoint (/meta/proxy). This endpoint is intended to forward requests only to destinations that appear on a configured allowlist. The allowlist decision was evaluated in a place where it could not stop a request from being forwarded, so a rejected destination was logged but the request was still handed to the proxy's transport. This affects SUSE Rancher 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11, 2.12.0 up to 2.12.15, 2.11.0 up to 2.11.19 and potentially older EOL versions.
Severity
7.6 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 18:55 UTC
CWE
- CWE-918 - Server-Side request forgery (SSRF)
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/security/advis… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
2.15.0 , < 2.15.3
(semver)
Affected: 2.14.0 , < 2.14.7 (semver) Affected: 2.13.0 , < 2.13.11 (semver) Affected: 2.12.0 , < 2.12.15 (semver) Affected: 2.11.0 , < 2.11.19 (semver) cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* |
Date Public
2026-11-02 15:44
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CVE-2026-94290 (GCVE-0-2026-94290)
Vulnerability from cvelistv5 – Published: 2026-11-02 15:29 – Updated: 2026-11-03 04:55
VLAI
EPSS
VEX
Title
Privilege escalation to cluster-admin on the Rancher local cluster through Fleet's agent management controller
Summary
SUSE Rancher Fleet clusters reference a kubeconfig secret that the controller uses to install and manage a Fleet agent on the target cluster. The controller did not sufficiently restrict which kubeconfig secrets a Fleet Cluster object was allowed to reference. As a result, a Fleet cluster defined in a namespace an ordinary user controls could be associated with administrative credentials for the management cluster itself, causing the controller to manage the management cluster on that user's behalf and to run that user's Fleet content there with elevated privileges. This affects SUSE Rancher Fleet 0.16.0 up to 0.16.3, 0.15.0 up to 0.15.8, 0.14.0 up to 0.14.12, 0.13.0 up to 0.13.17 and possible older versions.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 00:00 UTC
CWE
- CWE-250 - Execution with unnecessary privileges
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
0.16.0 , < 0.16.3
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Date Public
2026-11-02 15:25
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CVE-2026-104623 (GCVE-0-2026-104623)
Vulnerability from cvelistv5 – Published: 2026-10-30 16:11 – Updated: 2026-10-30 18:09
VLAI
EPSS
VEX
Title
Authorization bypass on the local cluster shell endpoint allows an unauthorized Rancher user to obtain a shell pod on the management cluster
Summary
A security vulnerability exists in the authorization handling for the local (management) cluster shell feature of SUSE Rancher Manager 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11, 2.12.0 up to 2.12.15, 2.11.0 up to 2.11.19 and possible older versions. The authorization check that was introduced to protect this feature was not applied to every API route that can reach it, so an alternative request form reached the shell handler without the access check being evaluated. This could allow any authenticated users to run a pod on the management cluster.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 17:37 UTC
CWE
- CWE-290 - Authentication bypass by spoofing
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/security/advis… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
2.15.0 , < 2.15.3
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Date Public
2026-10-30 16:02
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CVE-2026-104615 (GCVE-0-2026-104615)
Vulnerability from cvelistv5 – Published: 2026-10-30 15:49 – Updated: 2026-11-06 16:23
VLAI
EPSS
VEX
Title
Cluster identity takeover in Fleet cluster registration allows access to another cluster's Fleet namespace
Summary
A security vulnerability was discovered in SUSE Rancher Fleet's cluster registration flow, in Fleet versions before 0.12, 0.13.0 up to 0.13.17, 0.14.0 up to 0.14.12, 0.15.0 up t o 0.15.17 and 0.16.0 up to 0.16.3. The cluster identity claimed by a registration request was accepted without being bound to the registration token that the request was made with. As a result, a registration request could be associated with a managed cluster that was originally registered with a different registration token.
Severity
7.9 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 16:23 UTC
CWE
- CWE-290 - Authentication bypass by spoofing
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
0.16.0 , < 0.16.3
(semver)
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Date Public
2026-10-30 15:44
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CVE-2024-22031 (GCVE-0-2024-22031)
Vulnerability from cvelistv5 – Published: 2026-10-15 08:21 – Updated: 2026-10-16 03:56
VLAI
EPSS
VEX
Title
Rancher users who can create Projects can gain access to arbitrary projects
Summary
A vulnerability has been identified within Rancher where a user with the ability to create a project, on a certain cluster, can create a project with the same name as an existing project in a different cluster. This results in the user gaining access to the other project in the different cluster, resulting in a privilege escalation. This happens because the namespace used on the local cluster to store related resources (PRTBs and secrets) is the name of the project.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 00:00 UTC
CWE
- CWE-863 - Incorrect authorization
Assigner
suse
CNA
References
Impacted products
Date Public
2025-04-25 15:09
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CVE-2026-88804 (GCVE-0-2026-88804)
Vulnerability from cvelistv5 – Published: 2026-09-28 15:58 – Updated: 2026-09-28 18:02
VLAI
EPSS
VEX
Title
Unauthenticated update of public UI settings leading to stored cross-site scripting in Rancher
Summary
An unauthenticated update of public UI settings could be used by remote attackers to execute a stored cross-site scripting attack in the Rancher UI, in SUSE Rancher 2.15 before 2.15.2, 2.14 before 2.14.6, 2.13 before 2.13.10, 2.12 before 2.12.14 and 2.11 before 2.11.18.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 16:31 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/security/advis… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
2.15.0 , < 2.15.2
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Affected: 2.14.0 , < 2.14.6 (semver) Affected: 2.13.0 , < 2.13.10 (semver) Affected: 2.12.0 , < 2.12.14 (semver) Affected: 2.11.0se , < 2.11.18 (semver) cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* cpe:2.3:a:suse:rancher:*:*:*:*:*:*:*:* |
Date Public
2026-09-28 15:53
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CVE-2026-88805 (GCVE-0-2026-88805)
Vulnerability from cvelistv5 – Published: 2026-09-28 15:50 – Updated: 2026-09-29 03:55
VLAI
EPSS
VEX
Title
Session Not Revoked Server-Side on Logout in Rancher
Summary
Incorrect credential cleaning on logout could be used by remote attackers to keep access credentials even after the account was logged out. Affected is SUSE Rancher 2.15 before 2.15.2.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 00:00 UTC
CWE
- CWE-613 - Insufficient session expiration
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/security/advis… | vendor-advisory |
Impacted products
Date Public
2026-09-28 15:40
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CVE-2026-88808 (GCVE-0-2026-88808)
Vulnerability from cvelistv5 – Published: 2026-09-28 15:36 – Updated: 2026-09-29 03:55
VLAI
EPSS
VEX
Title
Fleet agent copies downstream resources with cluster-admin privileges, allowing cross-namespace writes on downstream clusters
Summary
A vulnerability has been identified within Rancher Manager where the Fleet agent wrote resources to downstream clusters using its own cluster-admin credentials instead of the ServiceAccount pinned to the deployment. It affects multi-tenancy environments where different tenants share the same downstream clusters, for example different privileged or untrusted teams inside the same organization. This could lead to overwritten configuration files.
This issue affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, and 0.14 before 0.14.11.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 00:00 UTC
CWE
- CWE-250 - Execution with unnecessary privileges
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
Date Public
2026-09-28 15:21
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CVE-2026-93540 (GCVE-0-2026-93540)
Vulnerability from cvelistv5 – Published: 2026-09-28 14:45 – Updated: 2026-09-28 16:22
VLAI
EPSS
VEX
Title
Fleet applies namespace labels and annotations without the bundle's service account privileges
Summary
A privilege mismatch was found in Fleet. When a bundle requested namespace labels or annotations through the namespaceLabels and namespaceAnnotations options, the resulting namespace metadata update was not subject to the same authorization as the rest of the bundle's deployment. As a result, a bundle could change labels and annotations on a target namespace even when the identity it was pinned to was not authorized to modify that namespace.
This affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, 0.14 before 0.14.11, 0.13 before 0.13.16 and potentially older versions.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 15:25 UTC
CWE
- CWE-266 - Incorrect privilege assignment
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
0.16.0 , < 0.16.1
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Date Public
2026-09-28 14:28
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CVE-2026-93539 (GCVE-0-2026-93539)
Vulnerability from cvelistv5 – Published: 2026-09-28 14:19 – Updated: 2026-09-28 16:22
VLAI
EPSS
VEX
Title
Unauthenticated GitRepo Spec Mutation via Fleet Git Webhook Receiver
Summary
A vulnerability was discovered in Fleet's Git webhook receiver (the gitjob webhook service). When a webhook secret is not configured, incoming webhook requests are accepted without verification, and processing a request can change the spec.pollingInterval field of a matching GitRepo resource in any namespace. A caller with network access to the webhook service and no Kubernetes credentials can therefore alter GitRepo configuration outside
the namespaces they are authorized for. This only affects SUSE Rancher Fleet 0.16 before 0.16.2, older versions are not affected.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 14:59 UTC
CWE
- CWE-306 - Missing authentication for critical function
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
Date Public
2026-09-28 14:16
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CVE-2026-93538 (GCVE-0-2026-93538)
Vulnerability from cvelistv5 – Published: 2026-09-28 14:10 – Updated: 2026-09-28 16:22
VLAI
EPSS
VEX
Title
Cross-tenant BundleDeployment and Secret disclosure via spoofed cluster labels during agent-initiated registration in Fleet
Summary
A cross-tenant authorization issue was discovered in SUSE Rancher Fleet. During agent-initiated cluster registration, cluster labels supplied by the registering agent, including labels in the reserved management.cattle.io/ namespace such as the cluster display name label, were applied to the resulting upstream Cluster object. Because Fleet resolves GitRepo and Bundle targets from those cluster labels, a party able to register a cluster into a Fleet workspace namespace shared with other tenants could cause its own cluster to satisfy targeting rules that administrators intended for a different cluster.
This affects SUSE Rancher Fleet 0.16 before 0.16.1, 0.15 before 0.15.6, 0.14 before 0.14.10, 0.13 before 0.13.15, 0.12 before 0.12.19 and older versions.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 15:46 UTC
CWE
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
0.16.0 , < 0.16.1
(semver)
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Date Public
2026-09-28 14:05
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CVE-2026-93537 (GCVE-0-2026-93537)
Vulnerability from cvelistv5 – Published: 2026-09-28 13:29 – Updated: 2026-09-28 17:54
VLAI
EPSS
VEX
Title
Path traversal in Fleet Helm valuesFiles allows disclosure of files outside the bundle directory
Summary
A user who can supply bundle content to a repository referenced by a GitRepo resource, for example through Git push access, or through permission to create or modify a GitRepo, can cause SUSE Rancher Fleet to read files from the filesystem of the environment that processes the bundle and include their contents in the generated Bundle resource. This can expose configuration or credential material that the user has no Kubernetes RBAC permission to read, including Helm registry credentials made available to the bundle-processing job when per-path Helm credentials are configured.
This affects Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, 0.14 before 0.14.11, 0.13 before 0.13.16, 0.12 before 0.12.20 and potentially older unsupported versions.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 17:54 UTC
CWE
- CWE-23 - Relative path traversal
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SUSE | Rancher |
Affected:
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(semver)
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Date Public
2026-09-28 12:15
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CVE-2026-75035 (GCVE-0-2026-75035)
Vulnerability from cvelistv5 – Published: 2026-09-03 15:07 – Updated: 2026-09-05 01:25
VLAI
EPSS
VEX
Title
Rancher: ext.cattle.io/v1 Token store: cross-user token disclosure via label-selector scoping bypass
Summary
A flaw was found in Rancher Manager. When a non-administrative caller supplied a label selector naming a different user, the ext.cattle.io/v1 Token store dropped its internal owner filter instead of returning an empty result. Any authenticated user could therefore list and watch every other user's tokens, disclosing token metadata and the stored salted hash of the bearer token.
This issue affects Rancher: before 2.15.1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-05 01:25 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
suse
CNA
References
1 reference
Date Public
2026-08-31 15:01
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CVE-2026-75034 (GCVE-0-2026-75034)
Vulnerability from cvelistv5 – Published: 2026-09-03 15:01 – Updated: 2026-11-03 22:13
VLAI
EPSS
VEX
Title
Rancher: SAML Assertion Replay
Summary
A flaw was found in Rancher Manager. The SAML assertion replay protection introduced by the fix for CVE-2026-44946 recorded consumed assertion IDs in a per-process cache, so each replica only detected replays that reached the same pod. In a high-availability deployment, an attacker holding a captured assertion could replay it once against every other replica to obtain additional authenticated sessions as the victim.
This issue affects Rancher: before 2.15.1.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 03:56 UTC
CWE
- CWE-294 - Authentication bypass by capture-replay
Assigner
suse
CNA
References
1 reference
Date Public
2026-08-31 14:58
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CVE-2026-75033 (GCVE-0-2026-75033)
Vulnerability from cvelistv5 – Published: 2026-09-03 14:57 – Updated: 2026-09-03 15:13
VLAI
EPSS
VEX
Title
Rancher: Cross-Cluster Secret Leakage via Namespace projectId Annotation Spoofing
Summary
A flaw was found in Rancher Manager. Project Secrets were propagated into a namespace based only on its `field.cattle.io/projectId` annotation, without verifying that the referenced project belonged to the same downstream cluster. A user able to create namespaces on one cluster could set the annotation to a project ID from another cluster and have that project's secrets copied into a namespace under their control.
This issue affects Rancher: before 2.15.1.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:13 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
suse
CNA
References
1 reference
Date Public
2026-08-31 14:52
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CVE-2026-71404 (GCVE-0-2026-71404)
Vulnerability from cvelistv5 – Published: 2026-09-03 14:51 – Updated: 2026-09-03 15:07
VLAI
EPSS
VEX
Title
Rancher: Ownership-less ClusterRole overwrite via attacker-controlled cr-name annotation on GlobalRole
Summary
A flaw was found in Rancher Manager. The GlobalRole controller derived the target ClusterRole name from the user-settable `authz.management.cattle.io/cr-name` annotation and overwrote that object's rules without verifying ownership. A user with delegated GlobalRole create or update permission could point the annotation at any existing ClusterRole, such as `cluster-admin`, and revoke the permissions of every principal bound to it. The change persists after the malicious GlobalRole is deleted.
This issue affects Rancher: before 2.15.1.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:06 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
suse
CNA
References
2 references
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CVE-2026-71403 (GCVE-0-2026-71403)
Vulnerability from cvelistv5 – Published: 2026-09-03 14:45 – Updated: 2026-09-04 03:55
VLAI
EPSS
VEX
Title
Rancher: Identity-field mutation in /v3/users allows account hijack via principal rebind
Summary
A flaw was found in Rancher Manager. The /v3/users update path did not enforce immutability of a User resource's `username` and `principalIds` fields. A user holding the `update` verb on `users.management.cattle.io` could inject a foreign identity provider principal into any account, so that the next login by the owner of that principal was bound to the victim's account and inherited its role bindings.
This issue affects Rancher: before 2.15.1.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 00:00 UTC
CWE
- CWE-639 - Authorization bypass through User-Controlled key
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/pull/56616 | patch |
Date Public
2026-08-31 14:37
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CVE-2026-44945 (GCVE-0-2026-44945)
Vulnerability from cvelistv5 – Published: 2026-08-05 10:00 – Updated: 2026-08-06 03:55
VLAI
EPSS
VEX
Title
Cross-Cluster Impersonation Confused-Deputy Privilege Escalation
Summary
A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user
global role can gain full administrative access to the Rancher control
plane and transitively to all downstream clusters it manages.
This issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 00:00 UTC
CWE
Assigner
suse
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher/pull/55983 | patch |
| https://github.com/rancher/rancher/security/advis… | vendor-advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=CVE-202… | issue-tracking |
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CVE-2026-55998 (GCVE-0-2026-55998)
Vulnerability from cvelistv5 – Published: 2026-08-05 07:51 – Updated: 2026-08-05 13:13
VLAI
EPSS
VEX
Title
Cluster Existence Oracle via Unauthenticated Import Endpoint
Summary
The endpoint /v3/import/{token}_{clusterId}.yaml retrieves the cluster object before validating the token. When a valid cluster ID references a cluster that has private registry secrets configured, a nil pointer dereference in pkg/systemtemplate/private_registry.go causes the request to return HTTP 502 Bad Gateway. For cluster IDs that do not exist, the endpoint returns HTTP 200. This observable difference in response codes constitutes a reliable enumeration oracle.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:11 UTC
CWE
- CWE-204 - Observable response discrepancy
Assigner
suse
CNA
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Impacted products
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CVE-2026-59675 (GCVE-0-2026-59675)
Vulnerability from cvelistv5 – Published: 2026-08-05 07:49 – Updated: 2026-08-05 13:15
VLAI
EPSS
VEX
Title
Rancher Audit-Log Middleware Unauthenticated Memory Exhaustion Denial of Service
Summary
When API audit logging is enabled, the middleware reads the entire HTTP request body into memory without enforcing a size limit on login endpoints. Because the audit middleware is positioned earlier in the handler chain than Rancher's APIBodyLimitingHandler, the body-size cap (default 1 MiB) is bypassed for requests that pass through the audit copyReqBody path. An unauthenticated attacker can send arbitrarily large request bodies to the public login endpoints, causing the Rancher Manager server process to allocate memory proportional to the supplied body size. With just a few concurrent connections, this can exhaust available memory and terminate the Rancher Manager plane process, making the Rancher API and UI unavailable and interrupting management of all downstream clusters.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:14 UTC
CWE
- CWE-770 - Uncontrolled Resource Consumption / Input Handling
Assigner
suse
CNA
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Impacted products
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CVE-2026-55996 (GCVE-0-2026-55996)
Vulnerability from cvelistv5 – Published: 2026-08-05 07:46 – Updated: 2026-08-05 19:05
VLAI
EPSS
VEX
Title
Unauthenticated Denial-of-Service via TLS SAN Stuffing in Rancher and cattle-cluster-agent
Summary
A denial-of-service vulnerability was identified in multiple TLS listeners in Rancher. Both the cattle-cluster-agent component running in downstream clusters and the Rancher server itself use the dynamiclistener library to serve TLS traffic. Without an effective CN filter configured, dynamiclistener automatically appended to each serving certificate any hostname presented via Server Name Indication (SNI) in incoming TLS requests.
An unauthenticated attacker with network access within the affected cluster could send a large number of TLS requests with distinct hostnames, causing the serving certificate to accumulate an unbounded number of Subject Alternative Names (SANs). Eventually, the certificate grows large enough that TLS handshakes fail with an excessive message size error, causing a denial of service on the affected listeners.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:40 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
suse
CNA
References
Impacted products
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CVE-2026-44938 (GCVE-0-2026-44938)
Vulnerability from cvelistv5 – Published: 2026-07-07 13:05 – Updated: 2026-07-08 03:56
VLAI
EPSS
VEX
Title
Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent
Summary
A vulnerability has been identified in Fleet's agent-side deployer, which did not filter security-sensitive keys from namespaceLabels in fleet.yaml (or BundleDeployment.spec.options.namespaceLabels) when applying them to the target namespace.
An attacker with git push access to a
Fleet-monitored repository could overwrite Pod Security Standards (PSS)
enforcement labels on a target namespace. This allows the attacker to
weaken admission controls and deploy workloads that PSS policies would
otherwise block.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 00:00 UTC
CWE
- CWE-522 - Insufficiently Protected Credentials
Assigner
suse
CNA
References
Impacted products
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CVE-2026-44937 (GCVE-0-2026-44937)
Vulnerability from cvelistv5 – Published: 2026-07-06 09:52 – Updated: 2026-07-06 12:46
VLAI
EPSS
VEX
Title
SUSE Rancher Fleet had an Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components
Summary
Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade attack on other repositories on the system.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 12:46 UTC
CWE
- CWE-918 - Server-Side request forgery (SSRF)
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
Date Public
2026-05-28 09:44
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CVE-2026-44936 (GCVE-0-2026-44936)
Vulnerability from cvelistv5 – Published: 2026-07-06 09:30 – Updated: 2026-07-06 12:47
VLAI
EPSS
VEX
Title
Rancher Fleet SSRF in Bundle Reader via Unvalidated Helm Repository URL in fleet.yaml
Summary
Missing filtering when the helmRepoURLRegex field isn't set on a GitRepo resource in SUSE Rancher Fleet's bundle reader in 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 forwards Helm authentication credentials (BasicAuth) to any URL specified in the helm.repo field of a fleet.yaml file, allowing attackers able to push to fleet monitored git repos to leak helm access credentials.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 12:47 UTC
CWE
- CWE-918 - Server-Side request forgery (SSRF)
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/advisories/GHSA-hx4v-cxpf-vh8m | vendor-advisory |
Impacted products
Date Public
2026-05-28 09:28
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CVE-2026-44934 (GCVE-0-2026-44934)
Vulnerability from cvelistv5 – Published: 2026-07-06 08:45 – Updated: 2026-07-06 18:53
VLAI
EPSS
VEX
Title
Exposed tokens in SUSE Rancher AI Agent logs
Summary
A information disclosure when DEBUG loglevel is set in SUSE Rancher AI Agent 1.0 before 1.0.2 could leak API keys or LLM response text with potential sensitive data into logfiles, allowing local attackers to misuse respective gained data or credentials.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 18:53 UTC
CWE
- CWE-215 - Insertion of sensitive information into debugging code
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/rancher-ai-agent/secur… | vendor-advisory |
Date Public
2026-05-28 08:53
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CVE-2026-44935 (GCVE-0-2026-44935)
Vulnerability from cvelistv5 – Published: 2026-07-02 16:00 – Updated: 2026-07-03 03:56
VLAI
EPSS
VEX
Title
Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer
Summary
Missing validation of "valuesFrom" references in Helm Deployer of SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.15 could be used by owners of one tenant to access fleet credentials of other tenants.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-02 00:00 UTC
CWE
- CWE-1287 - Improper validation of specified type of input
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
Date Public
2026-05-28 15:26
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CVE-2026-44948 (GCVE-0-2026-44948)
Vulnerability from cvelistv5 – Published: 2026-06-30 15:12 – Updated: 2026-06-30 16:00
VLAI
EPSS
VEX
Title
Path Traversal in Rancher Fleet ImageScan GitRepo Path Handler
Summary
A path traversal vulnerability was found in Fleet's ImageScan subsystem in Rancher Fleet 0.12.0 up to 0.12.16, 0.13.0 up to 0.13.12, 0.14.0 up to 0.14.7 and 0.15.0 up to 0.15.3 could be used to traverse outside of the intended directory, causing a denial of service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 15:59 UTC
CWE
- CWE-23 - Relative path traversal
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/fleet/security/advisor… | vendor-advisory |
Impacted products
Date Public
2026-06-29 15:08
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CVE-2026-44949 (GCVE-0-2026-44949)
Vulnerability from cvelistv5 – Published: 2026-06-30 14:41 – Updated: 2026-06-30 15:10
VLAI
EPSS
VEX
Title
Unauthenticated namespace creation and RBAC injection via rancher-webhook FleetWorkspace mutating webhook
Summary
A Rancher FleetWorkspace admission path allowed side effects to occur in
the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to
the in-cluster rancher-webhook service
could submit a crafted admission payload and cause workspace-related
Kubernetes objects to be created with attacker-chosen identity data.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-30 15:10 UTC
CWE
- CWE-306 - Missing authentication for critical function
Assigner
suse
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/rancher/webhook/security/advis… | vendor-advisory |
Impacted products
Date Public
2026-06-29 14:27
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