{"action":"Upgrade pillow to 12.3.0 or later.","affected":[{"fixed":"12.3.0","introduced":"0"}],"component":"pillow","cve_ids":["CVE-2026-55380"],"ecosystem":"PyPI","epss":0.00518,"exploited":false,"fixed_versions":["12.3.0"],"ghsa_id":"GHSA-phj9-mv4w-65pm","id":"tcs_01M5KFT5YRNMVFWTNH8NPDHG29","modified_at":"2026-09-10T03:51:11.734605509Z","published_at":"2026-07-20T21:13:35Z","references":["https://osv.dev/vulnerability/GHSA-phj9-mv4w-65pm","https://github.com/python-pillow/Pillow/security/advisories/GHSA-phj9-mv4w-65pm","https://nvd.nist.gov/vuln/detail/CVE-2026-55380","https://github.com/python-pillow/Pillow/commit/f39b0ae6624eb2d7c5c5d651d9bb5fdbd96a8675","https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2026-2256.yaml","https://github.com/python-pillow/Pillow","https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-phj9-mv4w-65pm","url":"https://osv.dev/vulnerability/GHSA-phj9-mv4w-65pm"}],"summary":"Pillow `GdImageFile._open()`: image dimensions accepted without `_decompression_bomb_check()`"}