CriticalVulnerability
GHSA-gjgx-rvqr-6w6v: Mesop Affected by Unauthenticated Remote Code Execution via Test Suite Route /exec-py
- Identifiers
- CVE-2026-33057GHSA-gjgx-rvqr-6w6v
- Published
- Record updated
- Affected
- mesop <= 1.2.2
- Fixed in
- 1.2.3
- released March 16, 2026, 2 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 5.3%
Summary
The Mesop test sandbox server, in ai/sandbox/wsgi_app.py, exposes a /exec-py route that accepts a base64-encoded Python string in the code form parameter, writes it to disk and runs it with execute_module(module_path...). The route performs no authentication, so any client that can reach it can run arbitrary commands on the host. The advisory rates the impact as trivial severity for publicly exposed or unfirewalled deployments.
Mitigation
The source does not state a fix yet. Check the original advisory for updates.
Affected packages in the Exposure Registry
Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.
- mesopPyPINo LLM dependency detected
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