{"cve":"CVE-2021-27922","nvd":{"published":"2021-03-03T09:15:14.233","modified":"2026-06-17T03:45:37.340","status":"Modified","description":"Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-20"],"references":["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/8.1.2.html","https://security.gentoo.org/glsa/202107-33"],"products":["fedoraproject:fedora","python:pillow"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-27922","score":0.04851,"percentile":0.92026,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3wvg-mj6g-m9cv","url":"https://osv.dev/vulnerability/GHSA-3wvg-mj6g-m9cv","summary":"Pillow Uncontrolled Resource Consumption","modified":"2025-08-15T14:25:07.863555Z","packages":[{"ecosystem":"PyPI","name":"pillow","purl":"pkg:pypi/pillow","ranges":["<8.1.2"],"fixed":["8.1.2"]}]},{"id":"PYSEC-2021-41","url":"https://osv.dev/vulnerability/PYSEC-2021-41","summary":"","modified":"2023-12-06T01:00:59.834667Z","packages":[{"ecosystem":"PyPI","name":"pillow","purl":"pkg:pypi/pillow","ranges":["<8.1.1"],"fixed":["8.1.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}