CVE-2026-41680

medium Red Hat
CVSS v3 Base Score
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.1%
Exploitation probability in 30 days
Top 74% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: April 24, 2026 (76 days ago)
Last Modified: April 24, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in marked, a markdown parser and compiler. An unauthenticated attacker can exploit this Denial of Service (DoS) vulnerability by providing a specific 3-byte input sequence (a tab, a vertical tab, and a newline). This input triggers an infinite recursion loop during parsing, leading to unbounded memory allocation and causing the host Node.js application to crash due to Memory Exhaustion (OOM).

CWE

CWE-835

Affected Products

Migration Toolkit for VirtualizationMulticluster Engine for KubernetesOpenShift LightspeedOpenShift Service Mesh 3Red Hat Advanced Cluster Management for Kubernetes 2Red Hat Advanced Cluster Security 4Red Hat Ansible Automation Platform 2Red Hat build of Apicurio Registry 2Red Hat build of Apicurio Registry 3Red Hat Build of Podman Desktop

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 github.com