{"action":"Upgrade pillow to 12.3.0 or later.","affected":[{"fixed":"12.3.0","introduced":"0"}],"component":"pillow","cve_ids":["CVE-2026-55379"],"ecosystem":"PyPI","epss":0.00522,"exploited":false,"fixed_versions":["12.3.0"],"ghsa_id":"GHSA-45hq-cxwh-f6vc","id":"tcs_01M5KGYCB53KD2BN7G6BKH54XW","modified_at":"2026-07-13T07:26:26.726353373Z","published_at":"2026-07-06T19:17:08.577Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2255","https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst","https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d","https://github.com/python-pillow/Pillow/security/advisories/GHSA-45hq-cxwh-f6vc"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2255","url":"https://osv.dev/vulnerability/PYSEC-2026-2255"}],"summary":"Pillow is a Python imaging library. Prior to 12.3.0, PIL/BdfFontFile.py bdf_char() read the BBX width and height field from a BDF font file and passed attacker-controlled dimensions to Image.new() wit"}