Vulnerability CVE-2022-21680


Published: 2022-01-14

Description:
Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `block.def` may cause catastrophic backtracking against some strings and lead to a regular expression denial of service (ReDoS). 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.

 References:
https://github.com/markedjs/marked/security/advisories/GHSA-rrrm-qjm4-v8hf
https://github.com/markedjs/marked/commit/c4a3ccd344b6929afa8a1d50ac54a721e57012c0
https://github.com/markedjs/marked/releases/tag/v4.0.10

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