{"id":"CVE-2026-88006","title":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform","summary":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.1, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without running the OAuth role managem…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-863"],"vendor":"openwebui","product":"open_webui","affected":["open_webui >= 0.8.0, < 0.11.1"],"patched":["open_webui 0.11.1"],"published":"2026-09-10","updated":"2026-09-18","sourceUpdated":"2026-09-18T14:43:56.117","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88006","references":[{"url":"https://github.com/open-webui/open-webui/commit/d799e81edbdc971c6deb096b6474cd95b93504bf","label":"security-advisories@github.com"},{"url":"https://github.com/open-webui/open-webui/releases/tag/v0.11.1","label":"security-advisories@github.com"},{"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-wvm9-9g5j-623f","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"epss":0.00217,"epssPercentile":0.1235,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-10T17:45:58.106650Z"},"ingestedAt":"2026-09-12T16:27:14.560Z","slug":"CVE-2026-88006","body":"## Overview\n\nOpen WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.1, Open WebUI's OAuth token exchange endpoint issues a session for a provider access token without running the OAuth role management that the normal OAuth login callback runs. A user whose provider roles the login callback would refuse, or would demote, could still obtain a working session at their existing role through this endpoint. This issue is fixed in version 0.11.1.\n\n## Affected\n\n- `open_webui >= 0.8.0, < 0.11.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `open_webui 0.11.1`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}