CVE-2026-40252: CWE-284: Improper Access Control in labring FastGPT
FastGPT is an AI Agent building platform. Prior to 4.14.10.4, Broken Access Control vulnerability (IDOR/BOLA) allows any authenticated team to access and execute applications belonging to other teams by supplying a foreign appId. While the API correctly validates the team token, it does not verify that the requested application belongs to the authenticated team. This leads to cross-tenant data exposure and unauthorized execution of private AI workflows. This vulnerability is fixed in 4.14.10.4.
AI Analysis
Technical Summary
FastGPT versions before 4.14.10.4 contain an improper access control vulnerability (CWE-284) where the API does not verify that the application requested by an authenticated team actually belongs to that team. This allows an authenticated user to supply a foreign appId and gain unauthorized access to and execution rights over applications owned by other teams. The issue results in cross-tenant data exposure and unauthorized execution of private AI workflows. The vulnerability is addressed in FastGPT version 4.14.10.4.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized access to applications and data belonging to other teams within the FastGPT platform. Attackers with valid team credentials can execute private AI workflows of other teams, potentially exposing sensitive data and disrupting intended application operations. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
This vulnerability is fixed in FastGPT version 4.14.10.4. Users should upgrade to version 4.14.10.4 or later to remediate this issue. Since the product is not a cloud service, remediation requires applying the official patch by updating the software. Patch status is confirmed by the vendor advisory stating the fix is included in version 4.14.10.4.
CVE-2026-40252: CWE-284: Improper Access Control in labring FastGPT
Description
FastGPT is an AI Agent building platform. Prior to 4.14.10.4, Broken Access Control vulnerability (IDOR/BOLA) allows any authenticated team to access and execute applications belonging to other teams by supplying a foreign appId. While the API correctly validates the team token, it does not verify that the requested application belongs to the authenticated team. This leads to cross-tenant data exposure and unauthorized execution of private AI workflows. This vulnerability is fixed in 4.14.10.4.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FastGPT versions before 4.14.10.4 contain an improper access control vulnerability (CWE-284) where the API does not verify that the application requested by an authenticated team actually belongs to that team. This allows an authenticated user to supply a foreign appId and gain unauthorized access to and execution rights over applications owned by other teams. The issue results in cross-tenant data exposure and unauthorized execution of private AI workflows. The vulnerability is addressed in FastGPT version 4.14.10.4.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized access to applications and data belonging to other teams within the FastGPT platform. Attackers with valid team credentials can execute private AI workflows of other teams, potentially exposing sensitive data and disrupting intended application operations. There are no known exploits in the wild as of the published date.
Mitigation Recommendations
This vulnerability is fixed in FastGPT version 4.14.10.4. Users should upgrade to version 4.14.10.4 or later to remediate this issue. Since the product is not a cloud service, remediation requires applying the official patch by updating the software. Patch status is confirmed by the vendor advisory stating the fix is included in version 4.14.10.4.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-10T17:31:45.786Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d9662c1cc7ad14dae9687b
Added to database: 4/10/2026, 9:05:48 PM
Last enriched: 4/18/2026, 2:34:39 PM
Last updated: 5/24/2026, 9:46:14 PM
Views: 91
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.