{"id":"CVE-2023-31606","aliases":["GHSA-qcm3-vfq5-wfr2"],"url":"https://o3.security/vulnerability/CVE-2023-31606","summary":"RedCloth Regular Expression Denial of Service issue","details":"A Regular Expression Denial of Service (ReDoS) issue was discovered in the sanitize_html function of redcloth gem v4.0.0. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.","published":"2023-06-06T00:00:00Z","modified":"2026-07-15T01:49:18.840747772Z","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":2,"affectedPackages":[{"ecosystem":"RubyGems","name":"RedCloth","fixedVersion":"4.3.3"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/31xxx/CVE-2023-31606.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-31606"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202401-14"},{"type":"REPORT","url":"https://github.com/jgarber/redcloth/issues/73"},{"type":"PACKAGE","url":"https://github.com/e23e/CVE-2023-31606#readme"},{"type":"PACKAGE","url":"https://github.com/jgarber/redcloth"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2023/07/msg00002.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:18.840747772Z"}}