{"action":"Upgrade pillow to 8.1.2 or later.","affected":[{"fixed":"8.1.2","introduced":"0"}],"component":"pillow","cve_ids":["CVE-2021-27921"],"ecosystem":"PyPI","epss":0.0317,"exploited":false,"fixed_versions":["8.1.2"],"ghsa_id":"GHSA-f4w8-cv6p-x6r5","id":"tcs_01M5KFEED6EM20TE873QC18EN7","modified_at":"2025-08-15T14:26:48.805609Z","published_at":"2021-03-18T19:55:13Z","references":["https://osv.dev/vulnerability/GHSA-f4w8-cv6p-x6r5","https://nvd.nist.gov/vuln/detail/CVE-2021-27921","https://github.com/python-pillow/Pillow/commit/756fff33128a0b643d10518a26ad04b726dd8973","https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-40.yaml","https://github.com/python-pillow/Pillow","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S7G44Z33J4BNI2DPDROHWGVG2U7ZH5JU","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQQY6472RX4J2SUJENWDZAWKTJJGP2ML","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTSY25UJU7NJUFHH3HWT575LT4TDFWBZ","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S7G44Z33J4BNI2DPDROHWGVG2U7ZH5JU","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TQQY6472RX4J2SUJENWDZAWKTJJGP2ML","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTSY25UJU7NJUFHH3HWT575LT4TDFWBZ","https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html","https://pillow.readthedocs.io/en/stable/releasenotes/8.1.2.html","https://security.gentoo.org/glsa/202107-33"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-f4w8-cv6p-x6r5","url":"https://osv.dev/vulnerability/GHSA-f4w8-cv6p-x6r5"}],"summary":"Pillow Denial of Service by Uncontrolled Resource Consumption"}