{"id":"CVE-2026-109437","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-109437","generatedAt":"2026-10-28T03:41:45.715Z","title":"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.","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.","published":"2026-10-19T19:17:20.000Z","lastModified":"2026-10-20T17:17:28.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":9.2,"severity":"CRITICAL","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-306","CWE-1188"],"affected":[],"epss":{"score":0.00778,"percentile":0.55651,"date":"2026-10-27","history":[{"date":"2026-10-20","score":0.00608,"percentile":0.4816}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-19T19:17:20.000Z","detail":{"score":"9.2","severity":"CRITICAL","publishedAt":"2026-10-19T19:17:19.807Z"},"summary":"New CVE, critical severity (CVSS 9.2)."}],"references":[{"url":"https://github.com/CognicellAI/Cognition/releases/tag/v0.13.0","source":"disclosure@vulncheck.com"},{"url":"https://www.lasso.security/vulnerability-database/cve-2026-109437","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/cognition-unauthenticated-rce-via-local-shell-backend","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-109437","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}