{"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_01M5KH6C5HQQJY8K2W43XC2X0Q","modified_at":"2026-08-04T14:30:30.167925503Z","published_at":"2026-08-04T11:34:46.220271Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3617","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","https://pypi.org/project/thumbor","https://github.com/advisories/GHSA-6x26-6r6f-m537","https://nvd.nist.gov/vuln/detail/CVE-2026-53500"],"severity":{"label":"high","score":8.2},"sources":[{"source":"osv","source_id":"PYSEC-2026-3617","url":"https://osv.dev/vulnerability/PYSEC-2026-3617"}],"summary":"Thumbor treats ALLOWED_SOURCES string patterns as unescaped regex, allowing hostname bypass via wildcard dot"}