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Vendor Workaround
To mitigate this vulnerability, ensure that the `volsync-addon-deploy-type` annotation is not explicitly set to `olm`. The default Helm deployment type for volsync-addon-controller in Red Hat Advanced Cluster Management for Kubernetes (since ACM 2.13) is not affected by this flaw.
Tracking
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Wed, 19 Aug 2026 20:30:00 +0000
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| Metrics |
ssvc
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Wed, 19 Aug 2026 18:00:00 +0000
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| 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. | |
| Title | Volsync-addon-controller: volsync-addon-controller: annotation values rendered into yaml via text/template without escaping allows yaml injection into subscription | |
| First Time appeared |
Redhat
Redhat acm |
|
| Weaknesses | CWE-94 | |
| CPEs | cpe:/a:redhat:acm:2 | |
| Vendors & Products |
Redhat
Redhat acm |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-19T19:59:57.514Z
Reserved: 2026-08-04T17:21:18.911Z
Link: CVE-2026-18874
Updated: 2026-08-19T19:54:09.547Z
Status : Received
Published: 2026-08-19T18:16:36.080
Modified: 2026-08-19T20:17:13.917
Link: CVE-2026-18874
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