Bug 2530926 (CVE-2024-58382)

Summary: CVE-2024-58382 league/commonmark: league/commonmark: Denial of Service vulnerability in Markdown parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in league/commonmark. A remote attacker could exploit polynomial time complexity vulnerabilities in the Markdown parsing component by submitting carefully crafted Markdown inputs. This could lead to a Denial of Service (DoS) by exhausting CPU resources and PHP-FPM processes when multiple requests are processed in parallel, making the service unavailable to legitimate users.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2533239    
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Description OSIDB Bzimport 2026-09-09 13:48:30 UTC
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.