{"action":"Upgrade thumbor to 7.8.0 or later.","affected":[{"fixed":"7.8.0","introduced":"0"}],"component":"thumbor","cve_ids":["CVE-2026-53505"],"ecosystem":"PyPI","epss":0.00609,"exploited":false,"fixed_versions":["7.8.0"],"ghsa_id":"GHSA-phj3-59pf-cp83","id":"tcs_01M5KH6CX7AW0KBEZRXMQV1KYS","modified_at":"2026-08-04T14:30:19.307836566Z","published_at":"2026-08-04T11:34:46.455208Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3621","https://github.com/thumbor/thumbor/security/advisories/GHSA-phj3-59pf-cp83","https://github.com/thumbor/thumbor/commit/2c716119de986cfc68c7071af52a98187e006023","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-phj3-59pf-cp83","https://nvd.nist.gov/vuln/detail/CVE-2026-53505"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-3621","url":"https://osv.dev/vulnerability/PYSEC-2026-3621"}],"summary":"Thumbor proportion filter allows unbounded post-transform resize leading to remote DoS"}