CVEs-PoC/2022/CVE-2022-21681.md

CVE-2022-21681

Description

Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression inline.reflinkSearch may cause catastrophic backtracking against some strings and lead to a denial of service (DoS). Anyone who runs untrusted markdown through a vulnerable version of marked and does not use a worker with a time limit may be affected. This issue is patched in version 4.0.10. As a workaround, avoid running untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.

POC

Reference

• https://github.com/markedjs/marked/security/advisories/GHSA-5v2h-r2cx-5xgj

Github

• https://github.com/HotDB-Community/HotDB-Engine