{"action":"Upgrade eventlet to 0.31.0 or later.","affected":[{"fixed":"0.31.0","introduced":"0.10"}],"component":"eventlet","cve_ids":["CVE-2021-21419"],"ecosystem":"PyPI","epss":0.01792,"exploited":false,"fixed_versions":["0.31.0"],"ghsa_id":"GHSA-9p9m-jm8w-94p2","id":"tcs_01M5KFB8ZT66GGQX05JKBR4Y7D","modified_at":"2026-07-08T06:27:42.178135165Z","published_at":"2021-05-07T15:50:36Z","references":["https://osv.dev/vulnerability/GHSA-9p9m-jm8w-94p2","https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2","https://nvd.nist.gov/vuln/detail/CVE-2021-21419","https://github.com/eventlet/eventlet/commit/1412f5e4125b4313f815778a1acb4d3336efcd07","https://github.com/eventlet/eventlet","https://github.com/pypa/advisory-database/tree/main/vulns/eventlet/PYSEC-2021-12.yaml","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-9p9m-jm8w-94p2","url":"https://osv.dev/vulnerability/GHSA-9p9m-jm8w-94p2"}],"summary":"Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet"}