{"action":"Upgrade open-webui to 0.9.6 or later.","affected":[{"fixed":"0.9.6","introduced":"0"}],"component":"open-webui","cve_ids":["CVE-2026-54011"],"ecosystem":"PyPI","epss":0.00336,"exploited":false,"fixed_versions":["0.9.6"],"ghsa_id":"GHSA-v8qj-hxv7-mgvv","id":"tcs_01M5KFZNPPW2GBDGWT7M7ZXGGV","modified_at":"2026-07-20T21:15:24.578552416Z","published_at":"2026-06-17T14:14:05Z","references":["https://osv.dev/vulnerability/GHSA-v8qj-hxv7-mgvv","https://github.com/open-webui/open-webui/security/advisories/GHSA-v8qj-hxv7-mgvv","https://nvd.nist.gov/vuln/detail/CVE-2026-54011","https://github.com/advisories/GHSA-v8qj-hxv7-mgvv","https://github.com/open-webui/open-webui","https://github.com/pypa/advisory-database/tree/main/vulns/open-webui/PYSEC-2026-2759.yaml","https://pypi.org/project/open-webui"],"severity":{"label":"high","score":8.7},"sources":[{"source":"osv","source_id":"GHSA-v8qj-hxv7-mgvv","url":"https://osv.dev/vulnerability/GHSA-v8qj-hxv7-mgvv"}],"summary":"Open WebUI: Stored XSS in Mermaid Markdown Preview"}