CVE-2026-41680

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.

References

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

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4