Npm · Marked · CVE-2026-41680
**Name of the Vulnerable Software and Affected Versions**
Marked versions 18.0.0 through 18.0.1
**Description**
A Denial of Service (DoS) issue exists in the markdown parser and compiler. An unauthenticated attacker can trigger an infinite recursion loop during parsing by providing a specific 3-byte input sequence consisting of a tab, a vertical tab, and a newline (x09x0b
). This results in unbounded memory allocation, leading to memory exhaustion (OOM) and causing the host Node.js application to crash.
**Recommendations**
Update to version 18.0.2.