CVE-2026-41680

Name	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
node-marked (PTS)	bullseye	0.8.0+ds+repack-2	fixed
	bookworm	4.2.3+ds+~4.0.7-2	fixed
	forky, sid, trixie	4.2.3+ds+~4.0.7-4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
node-marked	source	(unstable)	(not affected)

- node-marked <not-affected> (Only affects 18.0.0 and 18.0.1)
https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7