{"id":"CVE-2026-109437","summary":"Cognition \u003c 0.13.0 Unauthenticated RCE via Local Shell Backend","details":"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.","modified":"2026-10-20T02:44:36.316826305Z","published":"2026-10-19T18:22:57.431Z","database_specific":{"cwe_ids":["CWE-1188","CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109437.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109437.json"},{"type":"PACKAGE","url":"https://github.com/CognicellAI/Cognition"},{"type":"FIX","url":"https://github.com/CognicellAI/Cognition/releases/tag/v0.13.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109437"},{"type":"EVIDENCE","url":"https://www.lasso.security/vulnerability-database/cve-2026-109437"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/cognition-unauthenticated-rce-via-local-shell-backend"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cognicellai/cognition","events":[{"introduced":"0"},{"fixed":"fdf7f533ad45ac58a4b88ccf5f54cc02e0e196e5"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"0.13.0"}]}}],"versions":["v0.13.0-rc.1","v0.12.0","v0.11.0","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.0","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.6.2","v0.6.0","v0.5.0","v0.4.0","v0.3.1","v0.3.0","v0.2.1","v0.2.0","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109437.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}