{"action":"Upgrade thumbor to 7.8.0 or later.","affected":[{"fixed":"7.8.0","introduced":"0"}],"component":"thumbor","cve_ids":["CVE-2026-53500"],"ecosystem":"PyPI","epss":0.00498,"exploited":false,"fixed_versions":["7.8.0"],"ghsa_id":"GHSA-6x26-6r6f-m537","id":"tcs_01M5KF4E9DFMAHJY12C2QFR8PT","modified_at":"2026-08-04T14:40:34.274877182Z","published_at":"2026-07-31T18:36:03Z","references":["https://osv.dev/vulnerability/GHSA-6x26-6r6f-m537","https://github.com/thumbor/thumbor/security/advisories/GHSA-6x26-6r6f-m537","https://github.com/thumbor/thumbor/commit/68876715350c6c8f49c324e5515e64908830aed7","https://github.com/thumbor/thumbor","https://github.com/thumbor/thumbor/releases/tag/7.8.0"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"GHSA-6x26-6r6f-m537","url":"https://osv.dev/vulnerability/GHSA-6x26-6r6f-m537"}],"summary":"Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot"}