Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

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.

5294 vulnerabilities reference this CWE, most recent first.

CVE-2026-63669 (GCVE-0-2026-63669)

Vulnerability from cvelistv5 – Published: 2026-08-17 19:41 – Updated: 2026-08-17 22:01
VLAI
Title
ApostropheCMS: Missing destination-parent authorization in page `move()` allows a low-privileged editor to move and re-rank pages inside a restricted subtree
Summary
ApostropheCMS is an open-source Node.js content management system. Prior to 4.32.0, the page module's move() operation fails to enforce the destination parent's _create permission because its oldParent archive condition disables the check for ordinary moves, allowing an authenticated editor or contributor to use _targetId and _position through the page REST update endpoint to move a controlled page into a restricted subtree and make nudgeNewPeers() updateMany re-rank protected sibling pages. This issue is fixed in version 4.32.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 21:29 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
apostrophecms apostrophe Affected: < 4.32.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-63647 (GCVE-0-2026-63647)

Vulnerability from cvelistv5 – Published: 2026-09-18 19:53 – Updated: 2026-09-18 20:19
VLAI
Title
CordysCRM SSE Notification Stream Hijack via `/sse/subscribe`
Summary
CordysCRM is an open source AI-powered customer relationship management system that supports private deployment. Prior to 1.7.2, SseController exposes the anonymous /sse/subscribe, /sse/broadcast, and /sse/close endpoints because ShiroFilter.addPublicPathFilters permits the SSE paths, and the endpoints trust the caller-controlled userId instead of deriving an identity from an authenticated principal. An unauthenticated caller can use /sse/subscribe to read another user's workflow events, approval requests, mentions, and alerts, use /sse/broadcast to inject SYSTEM_HEARTBEAT messages into another user's stream, or use /sse/close to terminate another user's channel. This vulnerability is fixed in 1.7.2.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 20:19 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
1Panel-dev CordysCRM Affected: < 1.7.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63506 (GCVE-0-2026-63506)

Vulnerability from cvelistv5 – Published: 2026-09-16 20:27 – Updated: 2026-09-17 15:54
VLAI
Title
Tina: [Broken Access Control] letting any TinaCloud user authorize against any self-hosted site
Summary
Tina is a headless content management system. Prior to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1, isAuthorized accepts a request-controlled clientID and asks isUserAuthorized to validate the bearer token against that selected TinaCloud app instead of the self-hosted site's configured app. An attacker with any TinaCloud account can submit the attacker's own app ID and valid token to a victim endpoint, causing TinaCloudBackendAuthProvider or an affected media authorized callback to accept the attacker's verified status across the tenant boundary. The vulnerable logic is present in packages/@tinacms/auth/src/index.ts and packages/next-tinacms-azure/src/auth.ts. Successful exploitation permits media listing, reading, upload, or deletion and, when TinaCloudBackendAuthProvider is used, GraphQL read, create, update, and delete operations on the victim's content without a victim account or victim interaction. This vulnerability is fixed in @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 15:54 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-63458 (GCVE-0-2026-63458)

Vulnerability from cvelistv5 – Published: 2026-09-18 17:32 – Updated: 2026-09-18 19:50
VLAI
Title
Perses project query parameter authorization bypass exposes cross-project resources
Summary
Perses is an open-source dashboard and visualization project for observability data. Prior to 0.54.0-beta.3, an authenticated user with viewer access to one project can supply another project through the project query parameter on project-scoped list endpoints, including /api/v1/projects/{project}/dashboards and /api/v1/datasources. The request-controlled project value is used to select dashboards, datasources, and variables without enforcing the caller's authorization for that selected project, which breaks project-level tenant isolation and exposes complete resource specifications belonging to other projects. This issue is fixed in version 0.54.0-beta.3.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:50 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
perses perses Affected: < 0.54.0-beta.3
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63307 (GCVE-0-2026-63307)

Vulnerability from cvelistv5 – Published: 2026-07-17 16:13 – Updated: 2026-07-23 19:23 X_Open Source
VLAI
Title
Chat2DB < 5.3.0 Insecure Direct Object Reference via GET /api/connection/datasource
Summary
Chat2DB before 5.3.0 contains an insecure direct object reference vulnerability in the GET /api/connection/datasource/{id} endpoint. The handler calls dataSourceService.queryExistent(id, ...) without an ownership check and returns the decrypted password field, allowing any authenticated non-admin user to enumerate datasource IDs and read the plaintext database credentials of datasources owned by other users.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 19:23 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6798 records in the last 180 days details
References
Impacted products
Vendor Product Version
OtterMind Chat2DB Affected: 0 , < 5.3.0 (semver)
Create a notification for this product.
Date Public
2026-07-01 00:00
Credits
George Chen
Show details on NVD website
To clipboard 

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CVE-2026-63259 (GCVE-0-2026-63259)

Vulnerability from cvelistv5 – Published: 2026-07-21 22:37 – Updated: 2026-07-22 13:19
VLAI
Title
Authorization Bypass Through User-Controlled Key in Kibana Leading to Information Disclosure
Summary
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to information disclosure via user-supplied identifiers that reference scheduled query result data from Kibana Spaces the requester is not authorized to access.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 13:15 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
elastic CNA under the mitre root
CNA scorecard C 69/100 over 155 records in the last 180 days details
References
Impacted products
Vendor Product Version
Elastic Kibana Affected: 9.4.0 , ≤ 9.4.3 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63205 (GCVE-0-2026-63205)

Vulnerability from cvelistv5 – Published: 2026-09-25 18:13 – Updated: 2026-09-29 19:40
VLAI
Title
Zammad: Channel admins can read unauthorized attachments via signature rich-text body
Summary
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when creating or updating an email signature, Zammad processes inline images referenced in the signature body. If a signature body contains an HTML img tag pointing to any existing attachment, the system copies that attachment into a new signature-owned record, without checking whether the user has permission to access the original attachment. The newly created copy is then downloadable by the same channel-admin user, because attachment access is determined by the copy's owner (the signature), not the original object (e.g., a ticket or knowledge-base article). This allows a user with any of the admin.channel_email, admin.channel_google, admin.channel_microsoft365, or admin.channel_microsoft_graph permissions to read attachments they would otherwise be denied access to, such as ticket attachments belonging to groups they are not a member of. This issue is fixed in version 7.1.2.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 19:40 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
zammad zammad Affected: < 7.1.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63204 (GCVE-0-2026-63204)

Vulnerability from cvelistv5 – Published: 2026-09-25 18:22 – Updated: 2026-09-25 18:41
VLAI
Title
Zammad: Authenticated agents can read AI summary error messages from inaccessible tickets
Summary
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, an authenticated user with agent permissions can supply an arbitrary AI analytics run identifier to the ticket summarize endpoint and receive the AI provider error message stored for that run, even if the run belongs to a ticket the agent is not authorized to access. The disclosure is limited to the provider error string; ticket content is not exposed. This issue is fixed in version 7.1.2.
Severity
2.3 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 18:41 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
zammad zammad Affected: < 7.1.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63178 (GCVE-0-2026-63178)

Vulnerability from cvelistv5 – Published: 2026-08-17 21:30 – Updated: 2026-08-18 15:43
VLAI
Title
Onyx Curator-scope IDOR: any curator can modify membership of arbitrary user groups via unscoped PATCH /manage/admin/user-group/{id} and /add-users leading to cross-group document disclosure
Summary
Onyx is an open-source AI platform. Prior to 4.3.0, Onyx Enterprise Edition's PATCH /manage/admin/user-group/{user_group_id} and POST /manage/admin/user-group/{user_group_id}/add-users endpoints in ee/onyx/server/user_group/api.py call update_user_group and add_users_to_user_group in ee/onyx/db/user_group.py without enforcing _validate_curator_can_modify_group, allowing a curator to add accounts to arbitrary groups and obtain document access through get_acl_for_user and the OpenSearch access_control_list filter. This issue is fixed in version 4.3.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:42 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version
onyx-dot-app onyx Affected: < 4.3.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-63163 (GCVE-0-2026-63163)

Vulnerability from cvelistv5 – Published: 2026-10-13 19:53 – Updated: 2026-10-14 15:16 X_Open Source
VLAI
Title
Omnispace Agora Project < 26.10.0 Broken Access Control via MobileFileDownload
Summary
Omnispace Agora Project before 26.10.0 contains a broken access control vulnerability in the MobileFileDownload route that allows unauthenticated attackers to download arbitrary files by computing an md5(filename) token instead of passing a proper authorization check. Attackers can guess or determine file names to generate the corresponding md5 token and retrieve protected files without authorization, leading to unauthorized information disclosure.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 20:06 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6798 records in the last 180 days details
References
Impacted products
Vendor Product Version
Omnispace Agora Project Affected: 0 , < 26.10.0 (semver)
Create a notification for this product.
Date Public
2026-10-01 00:00
Credits
Geoffrey Robert of akailabs Valentin Holubec of akailabs
Show details on NVD website
To clipboard 

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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.

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