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CVE-2026-41680 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7	CISA-ADP	ExploitVendor Advisory
https://github.com/markedjs/marked/security/advisories/GHSA-6v9c-7cg6-27q7	[email protected]	ExploitVendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	[email protected]
CWE-674	Uncontrolled Recursion	[email protected]
CWE-835	Loop with Unreachable Exit Condition ('Infinite Loop')	[email protected]

Affected Products

Product	Versions
marked project marked	>= 18.0.0, < 18.0.2
CPE cpe:2.3:a:marked_project:marked::::::node.js::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 28, 2026	Initial Analysis	[email protected]
Apr 24, 2026	CVE Modified	CISA-ADP
Apr 24, 2026	New CVE Received	[email protected]