{"id":"CVE-2026-107366","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107366","generatedAt":"2026-10-27T22:46:54.580Z","title":"Any authenticated user can bulk-delete another user's messages, overwrite message content to inject malicious prompts, or hijack an entire conversation session by reassigning its session ID.","description":"IBM Langflow OSS 1.0.0 through 1.12.4 contains three message endpoints that perform no ownership verification. Any authenticated user can bulk-delete another user's messages, overwrite message content to inject malicious prompts, or hijack an entire conversation session by reassigning its session ID.","published":"2026-10-20T00:17:26.000Z","lastModified":"2026-10-21T04:17:10.000Z","status":"Awaiting Analysis","sourceIdentifier":"psirt@us.ibm.com","cvss":{"version":"3.1","score":8.3,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},"cwe":["CWE-639"],"affected":[],"epss":{"score":0.00302,"percentile":0.22719,"date":"2026-10-26","history":[{"date":"2026-10-20","score":0.00219,"percentile":0.11678}]},"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 (0.30%). 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":"2026-10-20T00:17:26.000Z","detail":{"score":"8.3","severity":"HIGH","publishedAt":"2026-10-20T00:17:25.640Z"},"summary":"New CVE, high severity (CVSS 8.3)."}],"references":[{"url":"https://www.ibm.com/support/pages/node/7293016","source":"psirt@us.ibm.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107366","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."}