← Vulnerability feed

Vulnerability record · CVE-2026-41680 · published 24 April 2026

CVE-2026-41680: Marked project marked uncontrolled resource consumption vulnerability

MMarked Project · Marked

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.

8.7 CVSS 4.0 High EPSS 0.51% · top 59.0% CWE-400 · Uncontrolled resource consumptionCWE-674 · CWE-674
8.7CVSS 4.0 base score
0.51%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

Track CVE-2026-41680 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2022-21680Marked project marked uncontrolled resource consumption vulnerabilityMarked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `block.def` may cause catastrophic backtracking against som…EPSS 2.9%7.5CVE-2022-21681Marked project marked uncontrolled resource consumption vulnerabilityMarked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `inline.reflinkSearch` may cause catastrophic backtracking …EPSS 2.8%7.5CVE-2021-21306Marked project marked uncontrolled resource consumption vulnerabilityMarked is an open-source markdown parser and compiler (npm package "marked"). In marked from version 1.1.1 and before version 2.0.0, there is a Regul…EPSS 2.5%7.5CVE-2017-16114Marked project marked uncontrolled resource consumption vulnerabilityThe marked module is vulnerable to a regular expression denial of service. Based on the information published in the public issue, 1k characters can …EPSS 1.8%7.5CVE-2015-8854Marked project marked inefficient regular expression (redos) vulnerabilityThe marked package before 0.3.4 for Node.js allows attackers to cause a denial of service (CPU consumption) via unspecified vectors that trigger a "c…EPSS 4.3%6.9CVE-2018-25110Marked project marked inefficient regular expression (redos) vulnerabilityMarked prior to version 0.3.17 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack due to catastrophic backtracking in several reg…EPSS 0.59%6.1CVE-2014-3743Marked project marked cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in the Marked module before 0.3.1 for Node.js allow remote attackers to inject arbitrary web scri…EPSS 1.7%6.1CVE-2016-10531Marked project marked cross-site scripting vulnerabilitymarked is an application that is meant to parse and compile markdown. Due to the way that marked 0.3.5 and earlier parses input, specifically HTML en…EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2026-41680), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.