{"id":"CVE-2022-42966","aliases":["GHSA-2p9h-ccw7-33gf","PYSEC-2022-43178"],"url":"https://o3.security/vulnerability/CVE-2022-42966","summary":"Exponential ReDoS in cleo leads to denial of service","details":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the cleo PyPI package, when an attacker is able to supply arbitrary input to the Table.set_rows method","published":"2022-11-09T00:00:00Z","modified":"2026-10-28T02:31:03.097421988Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"PyPI","name":"cleo","fixedVersion":"2.0.0"}],"fix":{"url":"https://github.com/python-poetry/cleo/pull/285","label":"python-poetry/cleo#285"},"references":[{"type":"WEB","url":"https://research.jfrog.com/vulnerabilities/cleo-redos-xray-257186/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42966.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-42966"},{"type":"WEB","url":"https://github.com/python-poetry/cleo/pull/285"},{"type":"WEB","url":"https://github.com/python-poetry/cleo/commit/b5b9a04d2caf58bf7cf94eb7ae4a1ebbe60ea455"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-2p9h-ccw7-33gf"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/cleo/PYSEC-2022-43178.yaml"},{"type":"PACKAGE","url":"https://github.com/python-poetry/cleo"},{"type":"WEB","url":"https://github.com/python-poetry/cleo/releases/tag/2.0.0"},{"type":"WEB","url":"https://research.jfrog.com/vulnerabilities/cleo-redos-xray-257186"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:03.097421988Z"}}