{"id":"CVE-2026-59198","aliases":["BIT-pillow-2026-59198","GHSA-fj7v-r99m-22gq","PYSEC-2026-3494"],"url":"https://o3.security/vulnerability/CVE-2026-59198","summary":"Pillow TGA RLE encoder can serialize up to ~57 KB of adjacent heap data into generated images","details":"Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0.","published":"2026-07-14T16:07:56.562Z","modified":"2026-08-27T18:26:02.533226958Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L"},"epss":{"score":0.00325,"percentile":0.24846,"asOf":"2026-08-26"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pillow","fixedVersion":"12.3.0"}],"fix":{"url":"https://github.com/python-pillow/Pillow/commit/eada3cbd7fb9963ee90673fb7b5270124a0d5f4b","label":"python-pillow/Pillow@eada3cb"},"references":[{"type":"WEB","url":"https://github.com/python-pillow/Pillow/releases/tag/12.3.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59198.json"},{"type":"ADVISORY","url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-fj7v-r99m-22gq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59198"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/eada3cbd7fb9963ee90673fb7b5270124a0d5f4b"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/pull/9709"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T18:26:02.533226958Z"}}