Bug 2511115 (CVE-2026-18874) - CVE-2026-18874 volsync-addon-controller: volsync-addon-controller: annotation values rendered into YAML via text/template without escaping allows YAML injection into Subscription
Summary: CVE-2026-18874 volsync-addon-controller: volsync-addon-controller: annotation...
Keywords:
Status: NEW
Alias: CVE-2026-18874
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-04 17:21 UTC by OSIDB Bzimport
Modified: 2026-08-19 17:12 UTC (History)
3 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-04 17:21:32 UTC 
A flaw was found in volsync-addon-controller (stolostron/volsync-addon-controller). Annotation values are rendered into YAML via text/template without escaping, allowing YAML injection into the OLM Subscription resource. The OLM/Subscription code path is only activated when the volsync-addon-deploy-type: olm annotation is explicitly set (Helm is the default since ACM 2.13), which limits the attack surface.

Upstream Jira: ACM-38765
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