Inefficient Regular Expression Complexity in marked (GHSA-5v2h-r2cx-5xgj)

Description

Denial of service.

The regular expression inline.reflinkSearch may cause catastrophic backtracking against some strings. PoC is the following.

Who is impacted?

Anyone who runs untrusted markdown through marked and does not use a worker with a time limit.

Recommendation

Update the marked package to the latest compatible version. Followings are version details:

• Affected version(s): < 4.0.10
• Patched version(s): 4.0.10

References

• GHSA-5v2h-r2cx-5xgj
• lists.fedoraproject.org
• CVE-2022-21681
• CWE-1333
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Volto affected by possible DoS by invoking specific URL by anonymous user - CVE-2025-58047
• Potential DoS when using ContextLines integration (GHSA-r5w7-f542-q2j4) 10 - Vulnerability
• @intlify/shared Prototype Pollution vulnerability (GHSA-hjwq-mjwj-4x6c) 3 - CVE-2024-52810
• @intlify/shared Prototype Pollution vulnerability (GHSA-hjwq-mjwj-4x6c) 2 - CVE-2024-52810

Tags:

npm

marked