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.

2791 vulnerabilities reference this CWE, most recent first.

CVE-2026-10700 (GCVE-0-2026-10700)

Vulnerability from cvelistv5 – Published: 2026-07-30 16:51 – Updated: 2026-07-31 23:02
VLAI
Title
Broken Access Control Vulnerabilities in Langflow 1.0.0 - 1.8.4 File Handling API Allowed Unauthorized Access to User Files
Summary
IBM Langflow OSS 1.0.0 through 1.8.4 contains multiple broken access control vulnerabilities in its file handling API that allow unauthorized access to user files.The /api/v1/files/images/{flow_id}/{file_name} endpoint does not enforce authentication or authorization checks, allowing unauthenticated remote attackers to retrieve image files associated with any flow by specifying a valid flow_id and file_name.Additionally, the /api/v1/files/download/{flow_id}/{file_name} endpoint requires authentication but fails to properly validate ownership of the requested resource. As a result, an authenticated user can access files belonging to other users by supplying arbitrary identifiers, leading to an authorization bypass (IDOR).Successful exploitation may result in unauthorized disclosure of sensitive data, including files stored in private flows. This issue breaks tenant isolation in multi-user deployments.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 23:02 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
ibm CNA
References
URL Tags
https://www.ibm.com/support/pages/node/7279675 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Langflow OSS Affected: 1.0.0 , ≤ 1.8.4 (semver)
    cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:langflow_oss:1.8.4:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-10631 (GCVE-0-2026-10631)

Vulnerability from cvelistv5 – Published: 2026-10-08 16:25 – Updated: 2026-10-08 19:11
VLAI
Title
Zimbra Collaboration Suite EWS Extension Authorization Bypass via Crafted Composite Folder/Item Identifier
Summary
An authorization bypass in the EWS FindItem handler of Zimbra Collaboration Suite 10.1.0 through 10.1.19 allows an authenticated user with EWS enabled to read complete mailbox items, including raw MIME and attachments, from arbitrary local accounts without a share or delegation grant.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:11 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
rapid7 CNA
References
Impacted products
Vendor Product Version
Zimbra Zimbra Collaboration Suite Affected: 0 , < 10.1.20 (semver)
Create a notification for this product.
Date Public
2026-10-08 16:16
Show details on NVD website

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CVE-2026-10630 (GCVE-0-2026-10630)

Vulnerability from cvelistv5 – Published: 2026-08-25 01:26 – Updated: 2026-08-25 18:10
VLAI
Title
WP Courses LMS <= 3.2.29 - Insecure Direct Object Reference to Authenticated (Custom+) Sensitive Information Disclosure via 'resultID' Parameter
Summary
The WP Courses LMS – Online Courses Builder, eLearning Courses, Courses Solution, Education Courses plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.2.29 via the 'resultID' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with custom-level access and above, to read any other user's quiz answers and scores by enumerating the incrementing resultID value via the wpcq_get_quiz_result AJAX action. The only access control on this endpoint is a nonce check (wpc_nonce) that is exposed to every logged-in user on the frontend, providing no meaningful authorization barrier.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 18:09 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Wordfence CNA
Credits
Show details on NVD website

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CVE-2026-10623 (GCVE-0-2026-10623)

Vulnerability from cvelistv5 – Published: 2026-06-18 05:34 – Updated: 2026-06-18 18:18
VLAI
Title
PressPrimer Quiz <= 2.3.0 - Insecure Direct Object Reference to Authenticated (Custom+) Arbitrary Modification via 'quiz_id', 'item_id', and 'rule_id' Parameters
Summary
The PressPrimer Quiz – AI Quiz Maker, Exam Builder & LMS Assessment Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.3.0 via the 'rule_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with custom-level access and above, to modify or delete quiz rules belonging to other teachers, resulting in unauthorized tampering of another user's quiz structure.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-18 18:18 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Wordfence CNA
Impacted products
Show details on NVD website

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CVE-2026-10597 (GCVE-0-2026-10597)

Vulnerability from cvelistv5 – Published: 2026-06-04 02:19 – Updated: 2026-06-04 15:07
VLAI
Title
ITPison|OMICARD EDM - Insecure Direct Object Reference
Summary
OMICARD EDM developed by ITPison has a Insecure Direct Object Reference vulnerability, allowing unauthenticated remote attackers to modify a specific parameter to obtain user's email address.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 14:04 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
twcert CNA
References
Impacted products
Vendor Product Version
ITPison OMICARD EDM Affected: 5.8 , ≤ 6.0.5.8 (custom)
Create a notification for this product.
Date Public
2026-06-04 02:17
Show details on NVD website

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CVE-2026-10542 (GCVE-0-2026-10542)

Vulnerability from cvelistv5 – Published: 2026-09-14 10:37 – Updated: 2026-09-14 11:19
VLAI
Title
Playbooks channel action update validation issue
Summary
Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to validate channel action ownership which allows channel managers to update actions in other channels via the channel action update endpoint.. Mattermost Advisory ID: MMSA-2026-00692
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 11:02 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
URL Tags
https://mattermost.com/security-updates vendor-advisory
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 11.9.0 , ≤ 11.9.0 (semver)
Affected: 11.8.0 , ≤ 11.8.4 (semver)
Affected: 11.7.0 , ≤ 11.7.7 (semver)
Affected: 10.11.0 , ≤ 10.11.22 (semver)
Unaffected: 11.10.0
Unaffected: 11.9.1
Unaffected: 11.8.5
Unaffected: 11.7.8
Unaffected: 10.11.23
Create a notification for this product.
Show details on NVD website

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CVE-2026-10212 (GCVE-0-2026-10212)

Vulnerability from cvelistv5 – Published: 2026-06-01 01:30 – Updated: 2026-06-01 15:23
VLAI
Title
AstrBotDevs AstrBot astr_main_agent.py astr_main_agent authorization
Summary
A vulnerability was identified in AstrBotDevs AstrBot 4.24.2. This affects the function astr_main_agent of the file astrbot/core/astr_main_agent.py. Such manipulation of the argument session_id leads to authorization bypass. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-01 15:14 UTC
CWE
Assigner
VulDB CNA
References
URL Tags
https://vuldb.com/vuln/367491 vdb-entrytechnical-description
https://vuldb.com/vuln/367491/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-10212 third-party-advisory
https://vuldb.com/submit/821923 third-party-advisory
https://gist.github.com/YLChen-007/91a7f955143099… exploit
Impacted products
Vendor Product Version
AstrBotDevs AstrBot Affected: 4.24.2
    cpe:2.3:a:astrbot:astrbot:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-10154 (GCVE-0-2026-10154)

Vulnerability from cvelistv5 – Published: 2026-05-30 23:00 – Updated: 2026-06-01 15:07 X_Open Source
VLAI
Title
Dolibarr ERP CRM messaging.php authorization
Summary
A vulnerability has been found in Dolibarr ERP CRM 23.0.0/23.0.1/23.0.2. The affected element is an unknown function of the file htdocs/user/messaging.php. Such manipulation of the argument ID leads to authorization bypass. The attack can be executed remotely. Upgrading to version 23.0.3 is sufficient to fix this issue. The name of the patch is 119b3606c7a701747a57a1f18b1a9e7666f678e2. 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 2026-06-01 15:07 UTC
CWE
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
Dolibarr ERP CRM Affected: 23.0.0
Affected: 23.0.1
Affected: 23.0.2
Unaffected: 23.0.3
    cpe:2.3:a:dolibarr:erp_crm:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-10140 (GCVE-0-2026-10140)

Vulnerability from cvelistv5 – Published: 2026-06-30 19:55 – Updated: 2026-08-11 22:52
VLAI
Title
Cross-Tenant API Key Reuse and Billing Fraud in Langflow Voice Mode Subsystem
Summary
IBM Langflow OSS 1.0.0 through 1.10.0 voice mode contains improper shared-state handling that allows reuse of API clients across tenant boundaries. An authenticated attacker can manipulate cache state to cause requests from other users to be processed using incorrect upstream API credentials, leading to cross-tenant billing and accountability misattribution.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 00:00 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
ibm CNA
References
URL Tags
https://www.ibm.com/support/pages/node/7278209 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Langflow OSS Affected: 1.0.0 , ≤ 1.10.0 (semver)
    cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:langflow_oss:1.10.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-10103 (GCVE-0-2026-10103)

Vulnerability from cvelistv5 – Published: 2026-07-13 07:57 – Updated: 2026-07-14 14:32
VLAI
Title
Authenticated remote cluster can modify or delete posts it does not own in Mattermost Connected Workspaces shared channels
Summary
Mattermost versions 11.7.x <= 11.7.2, 11.6.x <= 11.6.4, 10.11.x <= 10.11.19 fail to verify post ownership in the shared channel inbound sync handler, which allows an authenticated remote cluster to modify or delete posts authored by local users or other remotes via crafted sync messages referencing arbitrary post IDs in channels shared with that remote.. Mattermost Advisory ID: MMSA-2026-00689
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 14:18 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
URL Tags
https://mattermost.com/security-updates vendor-advisory
Impacted products
Vendor Product Version
Mattermost Mattermost Affected: 11.7.0 , ≤ 11.7.2 (semver)
Affected: 11.6.0 , ≤ 11.6.4 (semver)
Affected: 10.11.0 , ≤ 10.11.19 (semver)
Unaffected: 11.8.0
Unaffected: 11.7.3
Unaffected: 11.6.5
Unaffected: 10.11.20
Create a notification for this product.
Credits
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.