HIGH 8.7 NVD
CVE-2024-58382
league/commonmark versions before 2.6.0 contain polynomial time complexity vulnerabilities in Markdown parsing that allow attackers to cause denial of service.
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 worst-case performance, and sending multiple requests in parallel exhausts CPU resources and PHP-FPM processes.
References
- https://github.com/thephpleague/commonmark/security/advisories/GHSA-c2pc-g5qf-rfrf
- https://www.vulncheck.com/advisories/league-commonmark-before-2.6.0-denial-of-service-via-
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-09 via NVD.
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