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CVE-2026-30950: AutoGPT has Authenticated Session Hijacking via IDOR

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-18 · updated 2026-07-24
• Weakness: CWE-862

Description

AutoGPT is a workflow automation platform for creating, deploying, and managing continuous artificial intelligence agents. Versions 0.6.36 through 0.6.50 are vulnerable to Authenticated Session Hijacking via IDOR. If an authenticated attacker can determine the session_id of another user's session, they can take it over, reading any messages in it and locking the legitimate user out. The PATCH /sessions/{session_id}/assign-user endpoint authenticates the caller but never verifies session ownership: the service layer invokes the session lookup with user_id=None, which the data access layer interprets as a privileged/system call that bypasses the ownership filter, allowing any authenticated user to reassign an arbitrary session to themselves. This issue has been patched in version 0.6.51.

Affected products

• Significant-Gravitas AutoGPT: from 0.6.36, < 0.6.51

References

• https://github.com/Significant-Gravitas/AutoGPT/commit/eca7b5e79370c34ed75e80badb824023d7d8629d
• https://github.com/Significant-Gravitas/AutoGPT/security/advisories/GHSA-q58p-v9r9-7gqj
• https://github.com/Significant-Gravitas/AutoGPT/security/advisories/GHSA-q58p-v9r9-7gqj

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