{"id":"CVE-2020-35653","aliases":["BIT-pillow-2020-35653","GHSA-f5g8-5qq7-938w","PYSEC-2021-69"],"url":"https://o3.security/vulnerability/CVE-2020-35653","summary":"Pillow Out-of-bounds Read","details":"In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculations.","published":"2021-01-12T09:15:13.870Z","modified":"2026-08-07T11:31:11.775869385Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"pillow","fixedVersion":"8.1.0"}],"fix":{"url":"https://github.com/python-pillow/Pillow/commit/2f409261eb1228e166868f8f0b5da5cda52e55bf","label":"python-pillow/Pillow@2f40926"},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BYVI5G44MRIPERKYDQEL3S3YQCZTVHE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BF553AMNNNBW7SH4IM4MNE4M6GNZQ7YD/"},{"type":"ADVISORY","url":"https://pillow.readthedocs.io/en/stable/releasenotes/index.html"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-35653"},{"type":"WEB","url":"https://github.com/python-pillow/Pillow/commit/2f409261eb1228e166868f8f0b5da5cda52e55bf"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-f5g8-5qq7-938w"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-69.yaml"},{"type":"PACKAGE","url":"https://github.com/python-pillow/Pillow"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6BYVI5G44MRIPERKYDQEL3S3YQCZTVHE"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BF553AMNNNBW7SH4IM4MNE4M6GNZQ7YD"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:11.775869385Z"}}