{"id":"CVE-2026-59213","aliases":["GHSA-3wp3-xxj9-5jqq","PYSEC-2026-3589"],"url":"https://o3.security/vulnerability/CVE-2026-59213","summary":"Open WebUI: Cross-user model-list exposure via static cache key in get_all_models (aiocache key= vs key_builder= misuse)","details":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, get_all_models handlers in routers/openai.py and routers/ollama.py passed a lambda to aiocache key instead of key_builder, causing permission-filtered per-user model lists to share a static cache entry and exposing one user’s model list to another caller during the TTL window. This issue is fixed in version 0.10.0.","published":"2026-07-09T16:55:00.032Z","modified":"2026-08-12T03:51:15.743170107Z","cvss":{"score":3.5,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N"},"epss":{"score":0.00297,"percentile":0.21975,"asOf":"2026-09-06"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"open-webui","fixedVersion":"0.10.0"}],"fix":{"url":"https://github.com/open-webui/open-webui/commit/0fc630b34b2899599dabffffa012afd47599aa75","label":"open-webui/open-webui@0fc630b"},"references":[{"type":"WEB","url":"https://github.com/open-webui/open-webui/releases/tag/v0.10.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59213.json"},{"type":"ADVISORY","url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-3wp3-xxj9-5jqq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59213"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/commit/0fc630b34b2899599dabffffa012afd47599aa75"},{"type":"FIX","url":"https://github.com/open-webui/open-webui/pull/25783"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:15.743170107Z"}}