{"action":"Upgrade open-webui to 0.11.1 or later.","affected":[{"fixed":"0.11.1","introduced":"0.10.0"}],"component":"open-webui","cve_ids":["CVE-2026-88000"],"ecosystem":"PyPI","epss":0.00592,"exploited":false,"fixed_versions":["0.11.1"],"ghsa_id":"GHSA-3cgp-3cqx-j8w2","id":"tcs_01M5KH8AVX9KDTVDKB4YAKK9DN","modified_at":"2026-09-10T12:15:09.104164226Z","published_at":"2026-09-10T09:45:01.836438Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3877","https://github.com/open-webui/open-webui/security/advisories/GHSA-3cgp-3cqx-j8w2","https://github.com/open-webui/open-webui/pull/28035","https://github.com/open-webui/open-webui/commit/b933292d63d12be3fd1416fe55519ddc7aa336bc","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.11.1","https://pypi.org/project/open-webui","https://github.com/advisories/GHSA-3cgp-3cqx-j8w2","https://nvd.nist.gov/vuln/detail/CVE-2026-88000"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3877","url":"https://osv.dev/vulnerability/PYSEC-2026-3877"}],"summary":"Open WebUI: Any authenticated user can hang the server via message deletion in a cyclic chat tree"}