CVE-2026-109437
CVE-2026-109437 · Cognition < 0.13.0 Unauthenticated RCE via Local Shell Backend
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Cognition before 0.13.0 contains an unauthenticated remote code execution vulnerability due to defaulting its agent sandbox backend to local execution and shipping no authentication on its REST/SSE API. Attackers can create a session via POST /sessions and post a message via POST /sessions/{id}/messages without credentials, causing the Deep Agents ReAct loop to run attacker-directed shell commands through the local shell backend, resulting in remote code execution as the server process.
CVSS 9.2 · Critical · EPSS 0.6% · Fix available
- Published
- Updated
Affected products and versions
cognition
- Versions
- ≥ 0, < 0.13.0: Affected (semver)
Update to 0.13.0