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

> Authenticated attackers can hijack other users' sessions by exploiting an IDOR flaw in the session assignment endpoint, allowing them to read messages and lock out legitimate users.

- **Severity:** High 7.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 May 2026
- **Updated:** 19 May 2026
- **Also known as:** GHSA-q58p-v9r9-7gqj

## What is CVE-2026-30950?

CVE-2026-30950 is a high-severity missing authorization vulnerability in Significant-Gravitas AutoGPT, published on 18 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-30950?


## How do I fix CVE-2026-30950?

No fix has been published for CVE-2026-30950 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30950 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30950 exists.

Public exploit code:

- POC for CVE-2026-30950 which allows session hijacking in AutoGpt (github_poc): https://github.com/ZeroPathAI/autogpt-CVE-2026-30950-poc

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30950 and fix it if it is affected.

What it is: CVE-2026-30950 is a high-severity missing authorization vulnerability in Significant-Gravitas AutoGPT, published on 18 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30950 exists.

Affected product: Significant-Gravitas AutoGPT. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-30950/ (Markdown: https://insights.sbomify.com/CVE-2026-30950/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30950
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30950
- OSV: https://osv.dev/vulnerability/CVE-2026-30950

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30950/
Summaries are generated and may contain mistakes; the official description above is the record.