{"id":"CVE-2024-58382","title":"league/commonmark versions before 2.6.0 contain polynomial time complexity vulnerabilities in Markdown parsing that allow attackers to cause denial of service","summary":"league/commonmark versions before 2.6.0 contain polynomial time complexity vulnerabilities in Markdown parsing that allow attackers to cause denial of service. Attackers can submit carefully crafted Markdown inputs designed to trigger wo…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-407"],"vendor":"thephpleague","product":"commonmark","affected":["commonmark < 2.6.0"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:20:21.673","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-58382","references":[{"url":"https://github.com/thephpleague/commonmark/security/advisories/GHSA-c2pc-g5qf-rfrf","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/league-commonmark-before-2.6.0-denial-of-service-via-quadratic-complexity","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-58382.json"},{"url":"https://access.redhat.com/security/cve/CVE-2024-58382"},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-58382"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-09T14:53:50.482623Z"},"ingestedAt":"2026-09-10T20:38:27.254Z","epss":0.00278,"epssPercentile":0.20572,"slug":"CVE-2024-58382","body":"## Overview\n\nleague/commonmark versions before 2.6.0 contain polynomial time complexity vulnerabilities in Markdown parsing that allow attackers to cause denial of service. Attackers can submit carefully crafted Markdown inputs designed to trigger worst-case performance, and sending multiple requests in parallel exhausts CPU resources and PHP-FPM processes.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-58382.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}