Marked allows Regular Expression Denial of Service (ReDoS) attacks

Description

Marked prior to version 0.3.17 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack due to catastrophic backtracking in several regular expressions used for parsing HTML tags and markdown links.

Recommendation

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

• Affected version(s): < 0.3.17
• Patched version(s): 0.3.17

References

• GHSA-p9wx-2529-fp83
• CVE-2018-25110
• CWE-1333
• CAPEC-310
• OWASP 2021-A6

Related Issues

• Bootstrap Cross-site Scripting vulnerability (GHSA-pj7m-g53m-7638) - CVE-2018-14041
• Nuxt has Client-Side Path Traversal in Nuxt Island Payload Revival - CVE-2025-59414
• @astrojs/node's trailing slash handling causes open redirect issue - CVE-2025-55207
• Linkify Allows Prototype Pollution & HTML Attribute Injection (XSS) - CVE-2025-8101

Tags:

npm

marked