CVE-2026-18874
This vulnerability allows an attacker to inject malicious YAML (Yet Another Markup Language) code into the OpenShift Lifecycle Manager (OLM) Subscription resource.
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.2 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:60386
- https://access.redhat.com/errata/RHSA-2026:60387
- https://access.redhat.com/errata/RHSA-2026:60388
- https://access.redhat.com/errata/RHSA-2026:60389
- https://access.redhat.com/errata/RHSA-2026:60390
- https://access.redhat.com/errata/RHSA-2026:60391
- https://access.redhat.com/security/cve/CVE-2026-18874
- https://bugzilla.redhat.com/show_bug.cgi?id=2511115
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.