Is CVE-2026-109437 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-109437?

CVE-2026-109437 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-109437

Description

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.