CVE-2026-41680
High · 7.5CVSS
7.5
EPSS
0.5%
Published
Apr 24, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | marked | 18.0.0 | 18.0.2 |
Related vulnerabilities
- GHSA-6v9c-7cg6-27q7 Marked Vulnerable to OOM Denial of Service via Infinite Recursion in marked Tokenizer Same vulnerability
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