{"action":"Upgrade open-webui to 0.8.6 or later.","affected":[{"fixed":"0.8.6","introduced":"0"}],"component":"open-webui","cve_ids":["CVE-2026-28788"],"ecosystem":"PyPI","epss":0.02969,"exploited":false,"fixed_versions":["0.8.6"],"ghsa_id":"GHSA-jjp7-g2jw-wh3j","id":"tcs_01M5KH19KEKV8KVGJT6CYAQGEV","modified_at":"2026-07-13T16:32:21.044789378Z","published_at":"2026-07-13T14:36:44.923155Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2742","https://github.com/open-webui/open-webui/security/advisories/GHSA-jjp7-g2jw-wh3j","https://nvd.nist.gov/vuln/detail/CVE-2026-28788","https://github.com/open-webui/open-webui","https://github.com/open-webui/open-webui/releases/tag/v0.8.6","https://pypi.org/project/open-webui","https://github.com/advisories/GHSA-jjp7-g2jw-wh3j"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"PYSEC-2026-2742","url":"https://osv.dev/vulnerability/PYSEC-2026-2742"}],"summary":"Open WebUI's process_files_batch() endpoint missing ownership check, allows unauthorized file overwrite"}