CVE-2026-18874 — MEDIUM (6.2)

Vulnerability 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.

CVSS Score

6.2

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-94

References

FAQ

What is CVE-2026-18874?

CVE-2026-18874 is a vulnerability with a CVSS score of 6.2 (MEDIUM). 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 ...

How severe is CVE-2026-18874?

CVE-2026-18874 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18874?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.