{"id":"CVE-2021-25290","aliases":["BIT-pillow-2021-25290","GHSA-8xjq-8fcg-g5hw","PYSEC-2021-36"],"url":"https://o3.security/vulnerability/CVE-2021-25290","summary":"Out-of-bounds Write in Pillow","details":"An issue was discovered in Pillow before 8.1.1. In TiffDecode.c, there is a negative-offset memcpy with an invalid size.","published":"2021-03-19T04:15:13.357Z","modified":"2026-08-07T11:31:06.358211613Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"pillow","fixedVersion":"8.1.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html"},{"type":"ADVISORY","url":"https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202107-33"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:06.358211613Z"}}