CVE-2026-18874 (GCVE-0-2026-18874)

Vulnerability from cvelistv5 – Published: 2026-08-19 17:52 – Updated: 2026-09-08 21:23
VLAI
Title
Volsync-addon-controller: volsync-addon-controller: annotation values rendered into yaml via text/template without escaping allows yaml injection into subscription
Summary
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.
Severity
6.2 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 19:54 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1082 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:60386 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:60387 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:60388 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:60389 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:60390 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:60391 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18874 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2511115 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 Unaffected: 1787683560 , < * (rpm)
    cpe:/a:redhat:acm:2.11::el9
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 Unaffected: 1787266564 , < * (rpm)
    cpe:/a:redhat:acm:2.13::el9
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 Unaffected: 1787266564 , < * (rpm)
    cpe:/a:redhat:acm:2.14::el9
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 Unaffected: 1787266360 , < * (rpm)
    cpe:/a:redhat:acm:2.15::el9
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 Unaffected: 1787266564 , < * (rpm)
    cpe:/a:redhat:acm:2.16::el9
Create a notification for this product.
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 Unaffected: 1787266556 , < * (rpm)
    cpe:/a:redhat:acm:2.17::el9
Create a notification for this product.
Date Public
2026-08-19 17:00
Show details on NVD website
To clipboard 

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}



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