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-2026-79990 (GCVE-0-2026-79990)

Vulnerability from cvelistv5 – Published: 2026-09-02 14:19 – Updated: 2026-09-02 17:53
VLAI
Title
GQL entry mutation `siteId` bypasses schema site scope, enabling cross-site content read/write/delete
Summary
Craft CMS GraphQL entry mutation resolvers (saveEntry, deleteEntry) read siteIddirectly from$argumentswithout passing throughArgumentManagerprepareArguments(), which is the function that enforces site-scope filtering via array_intersect against the GraphQL schema’s allowed sites. The query path (ElementResolverprepareElementQuery) correctly calls prepareArguments()`, so queries to unauthorized sites return empty. But mutations bypass this entirely — an attacker with a token scoped to Site A can create, modify, or delete entries in Site B by passing siteId in the mutations argument.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 17:52 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
Hackrate CNA
References
Impacted products
Vendor Product Version
craftcms cms Affected: 5.0.0-RC1 , < 5.10.11 (semver)
    cpe:2.3:a:craftcms:cms:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-79957 (GCVE-0-2026-79957)

Vulnerability from cvelistv5 – Published: 2026-10-14 18:01 – Updated: 2026-10-16 20:15
VLAI
Title
ServiceNext Insecure Direct Object Reference via GetUsarios
Summary
ServiceNext contains an insecure direct object reference (IDOR) in the /api/Usuario/GetUsuarios endpoint, which accepts a user-controlled numeric ID in the request body without verifying that the authenticated token belongs to the requested account (CWE-639). Any authenticated user can iterate the ID parameter to retrieve the full profile record of every other user, including passwords stored in cleartext (CWE-256), enabling account takeover and credential-stuffing attacks.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:15 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
BLSOPS CNA
References
Impacted products
Vendor Product Version
ServiceNext SerTec Affected: 1.00 (SerTec)
Create a notification for this product.
Show details on NVD website

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CVE-2026-79917 (GCVE-0-2026-79917)

Vulnerability from cvelistv5 – Published: 2026-09-21 20:43 – Updated: 2026-09-22 15:39
VLAI
Title
MaxKB: Chat share-link endpoint missing owner check: a chat token can publish another user's conversation
Summary
MaxKB is an open-source AI assistant for enterprise. In 2.7.0 through 2.10.4-lts, POST /chat/api/{application_id}/chat/{chat_id}/share_chat verifies that a conversation exists but does not verify that it belongs to the authenticated chat_user_id or to the application bound to the caller's token. An attacker with any chat token and a known victim chat_id can create an unauthenticated public ChatShareLink exposing the victim's conversation and can create PublicFileAccess state that makes associated files retrievable without credentials, with no available revoke path. No fixed version is available as of this review.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 14:12 UTC
CWE
  • CWE-285 - Improper Authorization
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
1Panel-dev MaxKB Affected: >= 2.7.0, <= 2.10.4-lts
Create a notification for this product.
Show details on NVD website

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CVE-2026-79759 (GCVE-0-2026-79759)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:59 – Updated: 2026-09-29 02:50
VLAI
Title
Termix: Cross-User Information Disclosure via Missing Ownership Check in deploy-to-host Endpoint
Summary
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 1.7.0 until 2.5.1, the POST /credentials/:id/deploy-to-host endpoint resolves credential and target-host records from attacker-controlled credentialId and targetHostId integer values without checking that either record belongs to the requesting user. In src/backend/database/routes/credentials.ts, differential errors reveal whether credential and host records exist and disclose each record's authType value. Properly encrypted passwords and keys are not disclosed, but a key-authenticated victim host can receive an outbound SSH connection attempt using the attacker's public key. This issue is fixed in version 2.5.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 02:50 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
Termix-SSH Termix Affected: >= 1.7.0, < 2.5.1
Create a notification for this product.
Show details on NVD website

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        },
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CVE-2026-79758 (GCVE-0-2026-79758)

Vulnerability from cvelistv5 – Published: 2026-09-24 15:57 – Updated: 2026-09-24 17:20
VLAI
Title
Termix: Authenticated users can read other users' host status and clear global SSH connections
Summary
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 1.8.0 until 2.5.1, authenticated Termix users can access the server-stats API without per-host authorization. GET /status returns statuses for hosts the requester cannot access, GET /status/:id accepts an attacker-supplied numeric host identifier, and POST /clear-connections permits a regular user to clear the global SSH connection pool. The affected src/backend/ssh/server-stats.ts routes expose host online or offline state and lastChecked timestamps and can disrupt other users' active sessions or pooled connections. Unauthenticated requests remain blocked, but authentication alone does not preserve tenant isolation. This issue is fixed in version 2.5.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 17:20 UTC
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
Termix-SSH Termix Affected: >= 1.8.0, < 2.5.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-79750 (GCVE-0-2026-79750)

Vulnerability from cvelistv5 – Published: 2026-08-31 17:54 – Updated: 2026-09-02 14:03
VLAI
Title
MCPHub authenticated horizontal IDOR: any non-admin user executes tools on other users' MCP servers (cross-tenant file read + SSRF)
Summary
MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.30, MCPHub scopes non-admin users to servers they own (list views and config edits enforce ownership), but the tool-execution API does not. Any authenticated non-admin user can invoke tools on MCP servers owned by other users — servers they cannot even see in GET /api/servers. Because connected MCP servers carry real capability (filesystem, HTTP fetch, cloud APIs with the owner's keys), this is cross-tenant compromise: demonstrated arbitrary host file read (/etc/passwd, another user's secrets) and SSRF. This issue has been patched in version 1.0.30.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 14:02 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
samanhappy mcphub Affected: < 1.0.30
Create a notification for this product.
Show details on NVD website

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CVE-2026-79654 (GCVE-0-2026-79654)

Vulnerability from cvelistv5 – Published: 2026-08-26 05:37 – Updated: 2026-10-02 17:36
VLAI
Title
Ketello: katello content view history api cross-organization authorization bypass
Summary
A flaw was found in Katello where the Content View History API does not properly enforce authorization when accessing a Content View specified by the user. An authenticated user with permission to view Content Views in one organization may be able to access the lifecycle history of a Content View belonging to another organization by supplying its identifier to the affected API endpoint. This can result in unauthorized disclosure of Content View lifecycle information, including publication and promotion events, associated users, and timestamps.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 22:44 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
redhat CNA
Impacted products
Vendor Product Version
Red Hat Red Hat Satellite 6.16 for RHEL 8 Unaffected: 0:4.14.0.23-1.el8sat , < * (rpm)
    cpe:/a:redhat:satellite:6.16::el8
    cpe:/a:redhat:satellite:6.16::el9
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    cpe:/a:redhat:satellite_utils:6.16::el8
    cpe:/a:redhat:satellite_utils:6.16::el9
Create a notification for this product.
Red Hat Red Hat Satellite 6.16 for RHEL 9 Unaffected: 0:4.14.0.23-1.el9sat , < * (rpm)
    cpe:/a:redhat:satellite:6.16::el8
    cpe:/a:redhat:satellite:6.16::el9
    cpe:/a:redhat:satellite_capsule:6.16::el8
    cpe:/a:redhat:satellite_capsule:6.16::el9
    cpe:/a:redhat:satellite_utils:6.16::el8
    cpe:/a:redhat:satellite_utils:6.16::el9
Create a notification for this product.
Red Hat Red Hat Satellite 6.17 for RHEL 9 Unaffected: 0:4.16.0.20-1.el9sat , < * (rpm)
    cpe:/a:redhat:satellite:6.17::el9
    cpe:/a:redhat:satellite_capsule:6.17::el9
    cpe:/a:redhat:satellite_utils:6.17::el9
Create a notification for this product.
Red Hat Red Hat Satellite 6.18 for RHEL 9 Unaffected: 0:4.18.0.24-1.el9sat , < * (rpm)
    cpe:/a:redhat:satellite:6.18::el9
    cpe:/a:redhat:satellite_capsule:6.18::el9
    cpe:/a:redhat:satellite_utils:6.18::el9
Create a notification for this product.
Red Hat Red Hat Satellite 6.19 for RHEL 9 Unaffected: 0:4.20.0.11-1.el9sat , < * (rpm)
    cpe:/a:redhat:satellite:6.19::el9
    cpe:/a:redhat:satellite_capsule:6.19::el9
    cpe:/a:redhat:satellite_utils:6.19::el9
Create a notification for this product.
Red Hat Red Hat Satellite 6     cpe:/a:redhat:satellite:6
Create a notification for this product.
Date Public
2026-08-26 05:27
Show details on NVD website

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CVE-2026-78581 (GCVE-0-2026-78581)

Vulnerability from cvelistv5 – Published: 2026-08-25 13:08 – Updated: 2026-08-25 14:51
VLAI
Title
Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Data Modification in Kibana
Summary
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized data modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). Under certain conditions, an authenticated user could reference another user's AI Assistant conversation identifier to access or modify a conversation they do not own. Successful exploitation requires knowledge of a hard-to-guess identifier.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 13:27 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
elastic CNA
Impacted products
Vendor Product Version
Elastic Kibana Affected: 8.0.0 , ≤ 8.16.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-78462 (GCVE-0-2026-78462)

Vulnerability from cvelistv5 – Published: 2026-09-08 17:18 – Updated: 2026-11-10 21:37
VLAI
Title
Visual Studio Code Security Feature Bypass Vulnerability
Summary
Authorization bypass through user-controlled key in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 04:26 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft Visual Studio Code Affected: 1.0.0 , < 1.136.2 (custom)
    cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-08 14:00
Show details on NVD website

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CVE-2026-78433 (GCVE-0-2026-78433)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:38 – Updated: 2026-10-18 13:35
VLAI
Title
Gitea private attachment disclosure through repository mismatch
Summary
Gitea's web attachment handler skips its cross-repository ownership check for attachments created before 16 January 2026 and checks permissions against the repository named in the request URL instead. An unauthenticated attacker who knows a private attachment's UUID can request it through a public repository's attachment path and retrieve its contents. This can expose issue and pull request attachments or release assets; the random attachment UUID must already be known to the attacker.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-18 13:35 UTC
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-863 - Incorrect Authorization
  • CWE-1220 - Insufficient Granularity of Access Control
Assigner
Gitea CNA
Impacted products
Vendor Product Version
Gitea Gitea Affected: 1.26.0 , ≤ 1.27.2 (semver)
Create a notification for this product.
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.