CVE-2026-41680

N/A

Description

Marked is a markdown parser and compiler. From 18.0.0 to 18.0.1, a critical Denial of Service (DoS) vulnerability exists in marked. By providing a specific 3-byte input sequence a tab, a vertical tab, and a newline (\x09\x0b\n)—an unauthenticated attacker can trigger an infinite recursion loop during parsing. This leads to unbounded memory allocation, causing the host Node.js application to crash via Memory Exhaustion (OOM). This vulnerability is fixed in 18.0.2.

CVE Details

CVSS v3.1 ScoreN/A

Published4/24/2026

Last Modified4/24/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-400CWE-674CWE-835

References

https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7(security-advisories@github.com)

https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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