PT-2026-32044 · Fastgpt · Fastgpt

CVE-2026-40252 · Published 2026-04-10 · Updated 2026-04-11

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions FastGPT versions prior to 4.14.10.4

Description A broken access control issue (IDOR/BOLA) exists in FastGPT prior to version 4.14.10.4. Authenticated teams can access and execute applications belonging to other teams by providing a foreign appId. The API validates the team token but does not verify application ownership, leading to cross-tenant data exposure and unauthorized execution of AI workflows.

Recommendations Update to version 4.14.10.4 or later.

Exploit

Fix

Improper Access Control

IDOR

Weakness Enumeration

CWE-284

CWE-639

Related Identifiers

CVE-2026-40252

GHSA-GC8M-W37W-24HW

Affected Products

Fastgpt

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40252.json · Exploit
• https://github.com/labring/FastGPT/security/advisories/GHSA-gc8m-w37w-24hw · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40252 · Security Note
• https://osv.dev/vulnerability/CVE-2026-40252 · Vendor Advisory
• https://github.com/labring/FastGPT/releases/tag/v4.14.10.4 · Note
• https://twitter.com/VulmonFeeds/status/2042866439439212814 · Twitter Post