CVE-2026-18874

medium Red Hat
CVSS v3 Base Score
6.2
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Confidentiality
Low
Integrity
High
Availability
High
Published: August 19, 2026 (18 days ago)
Last Modified: August 19, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in volsync-addon-controller. This vulnerability allows an attacker to inject malicious YAML (Yet Another Markup Language) code into the OpenShift Lifecycle Manager (OLM) Subscription resource. This is due to improper escaping of annotation values when they are rendered into YAML. Successful exploitation could lead to unauthorized modification or control over OLM Subscription configurations, potentially impacting software management within the cluster. This issue primarily affects systems where the 'volsync-addon-deploy-type: olm' annotation is explicitly enabled.

CWE

CWE-94

Affected Products

Red Hat Advanced Cluster Management for Kubernetes 2

References

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