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.
Metrics
Affected Vendors & Products
References
History
Wed, 09 Sep 2026 15:30:00 +0000
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| Metrics |
ssvc
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Wed, 09 Sep 2026 13:45:00 +0000
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| Description | 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. | |
| Title | league/commonmark before 2.6.0 Denial of Service via Quadratic Complexity | |
| First Time appeared |
Thephpleague
Thephpleague commonmark |
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| Weaknesses | CWE-407 | |
| CPEs | cpe:2.3:a:thephpleague:commonmark:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Thephpleague
Thephpleague commonmark |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-09T13:31:56.196Z
Updated: 2026-09-09T14:54:53.318Z
Reserved: 2026-08-16T13:02:14.691Z
Link: CVE-2024-58382
Updated: 2026-09-09T14:54:42.643Z
Status : Deferred
Published: 2026-09-09T14:17:10.327
Modified: 2026-09-09T20:20:21.673
Link: CVE-2024-58382
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