RHSA-2026:55180MediumCVSS 4.3
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
🔗 CVE IDs covered (1)
📋 Description
CVE-2026-63308 — Helm: Helm: Denial of Service via malformed chart files
🎯 Affected products4
- Red Hat Hardened Images
- helm3-main@aarch64 as a component of Red Hat Hardened Images
- helm3-main@src as a component of Red Hat Hardened Images
- helm3-main@x86_64 as a component of Red Hat Hardened Images
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: There is no configuration change that fully prevents this issue; upgrading to a fixed version of Helm resolves it. As a workaround, verify that Helm charts obtained from third-party or untrusted sources do not contain zero-byte files before processing them with `helm template`, `helm install`, `helm upgrade`, `helm lint`, or the SDK Engine.Render function.
🔗 References (5)
- selfhttps://access.redhat.com/errata/RHSA-2026:55180
- externalhttps://access.redhat.com/security/cve/CVE-2026-63308
- externalhttps://access.redhat.com/security/updates/classification/
- externalhttps://images.redhat.com/
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_55180.json