VulnSocial

CVE-2026-109437

LOWCVSS 9.2 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-306CWE-1188

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-20: 110-20
Referenced assets1 URL
Full discourse1 post
  • Severity Daily@severitydaily

    Cognition's 9.8 from VulnCheck (@VulnCheckAI) names a July release as the fix, and that release never added the API authentication the score depends on. No exploitation reported. https://severitydaily.com/cognition-cve-2026-109437-cwe-306-api-authentication-not-fixed-0-13-0-july-28/

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