CVE-2026-84375

high 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
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: September 1, 2026 (4 days ago)
Last Modified: September 1, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in js-yaml, a JavaScript YAML parser. An attacker can exploit this by providing a specially crafted YAML document that causes the parser to perform excessive processing when handling merge keys with empty sources. This can lead to prolonged CPU consumption, effectively causing a denial of service (DoS) for applications that process untrusted YAML input.

CWE

CWE-835

Affected Products

Cryostat 4Gatekeeper 3Migration Toolkit for Applications 8Migration Toolkit for ContainersMulticluster Engine for KubernetesNetwork Observability OperatorNode HealthCheck OperatorOpenShift LightspeedOpenShift PipelinesOpenShift Service Mesh 3

References

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