Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

2790 vulnerabilities reference this CWE, most recent first.

CVE-2026-102663 (GCVE-0-2026-102663)

Vulnerability from cvelistv5 – Published: 2026-10-12 18:49 – Updated: 2026-10-13 16:01
VLAI
Title
OpenList: Search metadata/count disclosure via Non-Separator-Aware Path Check in Bleve Search
Summary
OpenList is a file list program that supports multiple storage backends. Prior to 4.2.4, the OpenList search API uses a non-separator-aware strings.HasPrefix comparison as a path containment authorization check when authorizing globally indexed Bleve results against a restricted user's BasePath. When Bleve search is enabled and a restricted authenticated user searches the global index for content in a sibling path, the user causes a globally indexed sibling-path result to pass the prefix check. The strings.HasPrefix(node.Parent, user.BasePath) predicate allows a sibling path such as /base2 to be treated as contained by /base. Unauthorized file metadata or file-existence information can be disclosed, and the backend Total value can reveal a match even when another access check removes the individual result. This issue is fixed in version 4.2.4.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 16:00 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
OpenListTeam OpenList Affected: < 4.2.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-102406 (GCVE-0-2026-102406)

Vulnerability from cvelistv5 – Published: 2026-10-06 19:31 – Updated: 2026-10-08 03:55
VLAI
Title
Authorization Bypass Through User-Controlled Key in Kibana Leading to Cross-Tenant Data Interception
Summary
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana could lead to cross-tenant data interception. In this context, "tenant" refers to a user or team sharing the same Kibana deployment, not a separate Elastic Cloud organization or customer. Kibana's Fleet package installation process allowed a user holding delegated Fleet package-management privileges, without direct Elasticsearch administrative privileges, to claim a data stream identifier already in use by another tenant. Because ownership of that identifier was not verified before Fleet applied the uploaded package's generated index and ingest-pipeline settings to already-existing infrastructure, an attacker could redirect an existing tenant's data stream through infrastructure under their control. This exposed the affected tenant's subsequently ingested data to unauthorized disclosure and modification, and prevented that data from reaching its intended destination. Interception could continue even after the malicious package was removed, requiring separate remediation of the affected infrastructure.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 00:00 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
elastic CNA
Impacted products
Vendor Product Version
Elastic Kibana Affected: 8.14.0 , ≤ 8.19.21 (semver)
Affected: 9.0.0 , ≤ 9.4.6 (semver)
Affected: 9.5.0 , ≤ 9.5.3 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-102382 (GCVE-0-2026-102382)

Vulnerability from cvelistv5 – Published: 2026-10-01 12:31 – Updated: 2026-10-01 13:55 X_Open Source
VLAI
Title
WordPress Majestic Support plugin <= 1.2.0 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in Ahmad Majestic Support majestic-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Majestic Support: from n/a through 1.2.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:55 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
Ahmad Majestic Support Affected: 0 , ≤ 1.2.0 (custom)
Create a notification for this product.
Date Public
2026-10-01 12:30
Show details on NVD website

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CVE-2026-102373 (GCVE-0-2026-102373)

Vulnerability from cvelistv5 – Published: 2026-09-29 00:33 – Updated: 2026-10-01 15:26
VLAI
Title
GestSup before 3.2.62 Private Ticket Comment Disclosure via threadedit Parameter
Summary
GestSup versions before 3.2.62 fail to validate ticket ownership when loading comments via the threadedit parameter in thread.php. Authenticated attackers can enumerate sequential comment IDs to read private comments from other users' tickets without proper authorization checks.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:25 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
Impacted products
Vendor Product Version
GestSup GestSup Affected: 0 , < 3.2.62 (semver)
    cpe:2.3:a:gestsup:gestsup:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-24 00:00
Credits
Show details on NVD website

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CVE-2026-102339 (GCVE-0-2026-102339)

Vulnerability from cvelistv5 – Published: 2026-11-04 20:35 – Updated: 2026-11-09 16:59
VLAI
Title
Telepresence: Tunnel endpoint accepts caller-supplied session ID with no ownership proof — active client sessions hijackable
Summary
Telepresence enables local development against a remote Kubernetes or OpenShift cluster. Prior to 2.31.0, the Traffic Manager Tunnel gRPC streaming endpoint parses a session ID from the first bytes of a caller-controlled message in pkg/tunnel/message.go and passes it to state.Tunnel without verifying that the caller owns the active session. An attacker who obtains a valid active session ID through log leakage, cluster-internal channels, or the unauthenticated ArriveAsClient endpoint can attach a routed tunnel to that session and gain its network routing capabilities. UUID4 session IDs make cold brute force impractical. This vulnerability is fixed in 2.31.0.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:11 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
Impacted products
Show details on NVD website

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CVE-2026-102298 (GCVE-0-2026-102298)

Vulnerability from cvelistv5 – Published: 2026-10-14 21:55 – Updated: 2026-10-16 14:18
VLAI
Title
Insufficient Authorization and User Boundary Validation in Omada Controller MSP
Summary
In Omada Controller MSP mode, the user-confirmation endpoint fails to enforce the required permission check. An authenticated user can supply a caller-controlled Identifier parameter to validate credentials for another account and receive responses that distinguish nonexistent users, invalid passwords, and successful authentication.  Successful exploitation may allow user enumeration, credential verification, and unauthorized access to MSP resources or compromise of targeted accounts.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 03:56 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
  • CWE-862 - Missing Authorization
Assigner
TPLink CNA
Impacted products
Show details on NVD website

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CVE-2026-102261 (GCVE-0-2026-102261)

Vulnerability from cvelistv5 – Published: 2026-09-29 04:00 – Updated: 2026-09-29 10:34 X_Open Source
VLAI
Title
owen2345 Camaleon CMS Media Crop media_controller.rb crop authorization
Summary
A flaw has been found in owen2345 Camaleon CMS up to 2.9.2. Impacted is the function crop of the file app/controllers/camaleon_cms/admin/media_controller.rb of the component Media Crop Handler. This manipulation of the argument saved_avatar causes authorization bypass. The attack may be initiated remotely. The exploit has been published and may be used. Upgrading to version 2.9.3 is recommended to address this issue. Patch name: c143e145caa600947e70a240e87f2fed889149d3. It is suggested to upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 10:33 UTC
CWE
Assigner
VulDB CNA
Impacted products
Vendor Product Version
owen2345 Camaleon CMS Affected: 2.9.0
Affected: 2.9.1
Affected: 2.9.2
Unaffected: 2.9.3
    cpe:2.3:a:owen2345:camaleon_cms:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-102157 (GCVE-0-2026-102157)

Vulnerability from cvelistv5 – Published: 2026-10-06 19:39 – Updated: 2026-10-06 20:02
VLAI
Title
Security Advisory 0190
Summary
An insecure direct object reference (IDOR) vulnerability in a CloudVision CUE file-serving interface may allow an authenticated network user, under specific attack conditions, to access another user's transient data.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 20:01 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Arista CNA
References
Impacted products
Vendor Product Version
Arista Networks CloudVision CUE Affected: 2021.2.0 , ≤ 2026.2.0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-102139 (GCVE-0-2026-102139)

Vulnerability from cvelistv5 – Published: 2026-09-30 20:11 – Updated: 2026-10-01 13:37
VLAI
Title
Kiteworks Email Protection Gateway Incorrect Authorization
Summary
An authorization check in the large file exchange feature of Kiteworks Email Protection Gateway did not correctly establish that the requesting user was a party to the package being requested. An authenticated user of that optional feature could read the subject, message body, and attachments of packages they neither sent nor received.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:26 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-863 - Incorrect Authorization
Assigner
cisa-cg CNA
Impacted products
Vendor Product Version
Kiteworks Email Protection Gateway Affected: 0 , < 9.5.1 (custom)
Unaffected: 9.5.1
Create a notification for this product.
Date Public
2026-09-30 00:00
Show details on NVD website

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CVE-2026-102107 (GCVE-0-2026-102107)

Vulnerability from cvelistv5 – Published: 2026-09-30 20:24 – Updated: 2026-10-01 13:37
VLAI
Title
Kiteworks Core user impersonation in a file-request feature
Summary
Kiteworks Core contains a business logic flaw in a Kiteworks file-request feature allowed an authenticated user to send a request that appeared to originate from another user, because the server did not verify that the requester was authorized to act as the specified account. This could be used to solicit files or information from a recipient under a trusted identity; exploitation requires the feature to be enabled for the attacker's profile and the targeted recipient to act on the request.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:14 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
cisa-cg CNA
References
Impacted products
Vendor Product Version
Kiteworks Core Affected: 0 , < 9.5.1 (custom)
Unaffected: 9.5.1
Create a notification for this product.
Date Public
2026-09-30 00:00
Show details on NVD website

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Mitigation
Architecture and Design

For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.

Mitigation
Architecture and Design Implementation

Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.

Mitigation
Architecture and Design

Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.

No CAPEC attack patterns related to this CWE.