{"action":"Upgrade open-webui to 0.9.0 or later.","affected":[{"fixed":"0.9.0","introduced":"0"}],"component":"open-webui","cve_ids":["CVE-2026-45399"],"ecosystem":"PyPI","epss":0.0027,"exploited":false,"fixed_versions":["0.9.0"],"ghsa_id":"GHSA-8jjp-r2w2-4v22","id":"tcs_01M5KF8FPJBG04E2HN6GZBTTBE","modified_at":"2026-07-13T16:43:27.479448751Z","published_at":"2026-05-14T20:26:49Z","references":["https://osv.dev/vulnerability/GHSA-8jjp-r2w2-4v22","https://github.com/open-webui/open-webui/security/advisories/GHSA-8jjp-r2w2-4v22","https://nvd.nist.gov/vuln/detail/CVE-2026-45399","https://github.com/open-webui/open-webui/pull/23454","https://github.com/open-webui/open-webui/commit/e7ff4768f8ffe1924b4576381c9e45e8a64350e4","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.9.0"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"GHSA-8jjp-r2w2-4v22","url":"https://osv.dev/vulnerability/GHSA-8jjp-r2w2-4v22"}],"summary":"Open WebUI: Low-privilege authenticated users can enumerate and stop global background tasks, causing system-wide chat disruption"}