{"cve":"CVE-2026-109292","nvd":{"published":"2026-10-12T17:17:22.500","modified":"2026-10-15T15:55:45.630","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"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","score":7.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","score":6.8},"cwes":["CWE-200"],"references":["https://github.com/open-webui/open-webui/commit/3cda47cdb449aac970426f0929c9e5f8bb8bd807","https://github.com/open-webui/open-webui/commit/b71744b17823f7a3a9a64cb363e79a7164ed5b23","https://github.com/open-webui/open-webui/commit/f9f815c86220f809fad5ee1300c44f55dea74c79","https://github.com/open-webui/open-webui/security/advisories/GHSA-gqfh-jxvw-74rp","https://www.vulncheck.com/advisories/open-webui-0.6.27-before-0.11.4-session-token-disclosure-via-oauth-mode-connections"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:58:52.678897993+00:00"},"epss":{"cve":"CVE-2026-109292","score":0.00409,"percentile":0.34903,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}