{"id":"CVE-2023-44271","aliases":["BIT-pillow-2023-44271","GHSA-8ghj-p4vj-mr35","PYSEC-2023-227"],"url":"https://o3.security/vulnerability/CVE-2023-44271","summary":"Pillow Denial of Service vulnerability","details":"An issue was discovered in Pillow before 10.0.0. It is a Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument.","published":"2023-11-03T00:00:00Z","modified":"2026-08-08T03:47:46.908326898Z","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":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pillow","fixedVersion":"10.0.0"}],"fix":{"url":"https://github.com/python-pillow/Pillow/commit/1fe1bb49c452b0318cad12ea9d97c3bef188e9a7","label":"python-pillow/Pillow@1fe1bb4"},"references":[{"type":"WEB","url":"https://devhub.checkmarx.com/cve-details/CVE-2023-44271/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/44xxx/CVE-2023-44271.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N2JOEDUJDQLCUII2LQYZYSM7RJL2I3P4/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-44271"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/1fe1bb49c452b0318cad12ea9d97c3bef188e9a7"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/pull/7244"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:47:46.908326898Z"}}