{"id":"CVE-2026-109292","summary":"Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections","details":"Open WebUI from 0.6.27 before 0.11.4 contains an information disclosure vulnerability that allows destination servers to obtain user session cookies by receiving the full browser cookie jar on OAuth-mode connections. Operators of OpenAI-compatible connections, OpenAPI tool servers or terminal servers can capture forwarded session cookies from routine requests and replay them to hijack accounts, including administrators.","aliases":["GHSA-gqfh-jxvw-74rp"],"modified":"2026-10-13T02:45:48.850330390Z","published":"2026-10-12T16:04:52.925Z","database_specific":{"cwe_ids":["CWE-200"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109292.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109292.json"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/commit/3cda47cdb449aac970426f0929c9e5f8bb8bd807"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/commit/b71744b17823f7a3a9a64cb363e79a7164ed5b23"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/commit/f9f815c86220f809fad5ee1300c44f55dea74c79"},{"type":"ADVISORY","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-gqfh-jxvw-74rp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109292"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/open-webui-0.6.27-before-0.11.4-session-token-disclosure-via-oauth-mode-connections"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open-webui/open-webui","events":[{"introduced":"918f507d8cdc652ae913b8596877a8a50b845114"},{"fixed":"8bd8b4fac5e059578ac0c74b3c18d11139f88b7d"}],"database_specific":{"extracted_events":[{"introduced":"0.6.27"},{"fixed":"0.11.4"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.11.3","v0.11.2","v0.11.1","v0.11.0","v0.10.2","v0.10.1","v0.10.0","v0.9.5","v0.9.4","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.12","v0.8.11","v0.8.10","v0.8.9","v0.8.8","v0.8.7","v0.8.6","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.2","v0.7.1","v0.7.0","v0.6.43","v0.6.42","v0.6.41","v0.6.40","v0.6.39","v0.6.38","v0.6.37","v0.6.36","v0.6.34","v0.6.35","v0.6.33","v0.6.32","v0.6.31","v0.6.30","v0.6.29","v0.6.28","v0.6.27"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109292.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}