Significant-Gravitas AutoGPT up to 0.6.50 Message assign-user authorization

Summaryinfo

A vulnerability, which was classified as problematic, was found in Significant-Gravitas AutoGPT up to 0.6.50. This affects an unknown part of the file /sessions/{session_id}/assign-user of the component Message Handler. Such manipulation leads to authorization. This vulnerability is referenced as CVE-2026-30950. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Significant-Gravitas AutoGPT up to 0.6.50. Affected by this issue is some unknown functionality of the file /sessions/{session_id}/assign-user of the component Message Handler. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-30950 since 03/07/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available.

Upgrading to version 0.6.51 eliminates this vulnerability. Applying the patch eca7b5e79370c34ed75e80badb824023d7d8629d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• Significant-Gravitas

Name

• AutoGPT

Version

• 0.6.0
• 0.6.1
• 0.6.2
• 0.6.3
• 0.6.4
• 0.6.5
• 0.6.6
• 0.6.7
• 0.6.8
• 0.6.9
• 0.6.10
• 0.6.11
• 0.6.12
• 0.6.13
• 0.6.14
• 0.6.15
• 0.6.16
• 0.6.17
• 0.6.18
• 0.6.19
• 0.6.20
• 0.6.21
• 0.6.22
• 0.6.23
• 0.6.24
• 0.6.25
• 0.6.26
• 0.6.27
• 0.6.28
• 0.6.29
• 0.6.30
• 0.6.31
• 0.6.32
• 0.6.33
• 0.6.34
• 0.6.35
• 0.6.36
• 0.6.37
• 0.6.38
• 0.6.39
• 0.6.40
• 0.6.41
• 0.6.42
• 0.6.43
• 0.6.44
• 0.6.45
• 0.6.46
• 0.6.47
• 0.6.48
• 0.6.49
• 0.6.50

License

• open-source

Website

• Product: https://github.com/Significant-Gravitas/AutoGPT/

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