{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-109292", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-12T14:12:52.833Z", "datePublished": "2026-10-12T16:04:52.925Z", "dateUpdated": "2026-10-12T16:04:52.925Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-12T16:04:52.925Z" }, "datePublic": "2026-09-27T00:00:00.000Z", "title": "Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections", "descriptions": [ { "lang": "en", "value": "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." } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Exposure of Sensitive Information to an Unauthorized Actor", "cweId": "CWE-200", "type": "CWE" } ] } ], "affected": [ { "vendor": "open-webui", "product": "open-webui", "defaultStatus": "unaffected", "packageURL": "pkg:pypi/open-webui", "versions": [ { "version": "0.6.27", "status": "affected", "versionType": "semver", "lessThan": "0.11.4" }, { "version": "0.11.4", "status": "unaffected", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.6.27", "versionEndExcluding": "0.11.4" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 6.8, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://github.com/open-webui/open-webui/security/advisories/GHSA-gqfh-jxvw-74rp", "tags": [ "vendor-advisory" ], "name": "GitHub Security Advisory (GHSA-gqfh-jxvw-74rp)" }, { "url": "https://github.com/open-webui/open-webui/commit/f9f815c86220f809fad5ee1300c44f55dea74c79", "tags": [ "patch" ], "name": "Patch Commit" }, { "url": "https://github.com/open-webui/open-webui/commit/b71744b17823f7a3a9a64cb363e79a7164ed5b23", "tags": [ "patch" ], "name": "Patch Commit" }, { "url": "https://github.com/open-webui/open-webui/commit/3cda47cdb449aac970426f0929c9e5f8bb8bd807", "tags": [ "patch" ], "name": "Patch Commit" }, { "name": "VulnCheck Advisory: Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/open-webui-0.6.27-before-0.11.4-session-token-disclosure-via-oauth-mode-connections" } ], "credits": [ { "lang": "en", "value": "gigioneggiando", "type": "reporter" }, { "lang": "en", "value": "brodmart", "type": "reporter" }, { "lang": "en", "value": "Classic298", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } } } }