🛡️ CVE-2022-21680
🟠 CVSS 8.0 — High ⚠️ Exploit Public CWE-400 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-400
Public Exploit ⚠️ Yes
Source NVD
Published 2022-01-14
Updated 2026-06-15
Modified 2024-11-21

Affected Packages

Software From version Fixed in
fedora — —
marked — —

References

Release Notes, Third Party Advisory https://github.com/markedjs/marked/releases/tag/v4.0.10
Release Notes, Third Party Advisory https://github.com/markedjs/marked/releases/tag/v4.0.10

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