{"id":"CVE-2021-23437","aliases":["BIT-pillow-2021-23437","GHSA-98vv-pw6r-q6q4","PYSEC-2021-317","SNYK-PYTHON-PILLOW-1319443"],"url":"https://o3.security/vulnerability/CVE-2021-23437","summary":"Uncontrolled Resource Consumption in pillow","details":"The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.","published":"2021-09-03T16:15:08.317Z","modified":"2026-08-07T11:48:30.313937007Z","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":1,"affectedPackages":[{"ecosystem":"PyPI","name":"pillow","fixedVersion":"8.3.2"}],"fix":{"url":"https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b","label":"python-pillow/Pillow@9e08eb8"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/"},{"type":"ADVISORY","url":"https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202211-10"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b"},{"type":"FIX","url":"https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:48:30.313937007Z"}}