CVE-2022-21681 is a denial-of-service vulnerability in the 'marked' markdown parser, affecting versions prior to 4.0.10, including those used in Fedora. It arises from catastrophic backtracking in a regular expression when processing untrusted markdown, leading to resource exhaustion. With a CVSS score of 7.5 (High), this vulnerability is remotely exploitable with low attack complexity, potentially causing a complete loss of availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.0.10CPE matchmatch criteria | cpe:2.3:a:marked_project:marked:*:*:*:*:*:node.js:*:* | ||
36CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.