{"action":"Upgrade open-webui to 0.10.0 or later.","affected":[{"fixed":"0.10.0","introduced":"0.9.2"}],"component":"open-webui","cve_ids":["CVE-2026-59220"],"ecosystem":"PyPI","epss":0.00573,"exploited":false,"fixed_versions":["0.10.0"],"ghsa_id":"GHSA-ffpj-xv5c-p3gw","id":"tcs_01M5KH68ADKTSNFQHAHTDGMZCK","modified_at":"2026-08-04T14:30:28.720082476Z","published_at":"2026-08-04T11:34:42.517179Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3596","https://github.com/open-webui/open-webui/security/advisories/GHSA-ffpj-xv5c-p3gw","https://nvd.nist.gov/vuln/detail/CVE-2026-59220","https://github.com/open-webui/open-webui/commit/61a26722155ec6ee1b629cf8dfcf975098c18331","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.10.0","https://pypi.org/project/open-webui","https://github.com/advisories/GHSA-ffpj-xv5c-p3gw"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3596","url":"https://osv.dev/vulnerability/PYSEC-2026-3596"}],"summary":"Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config"}