High8.5Red Hat & Ubuntu Linux
Server-Side Template Injection via expression execution bypass
CVE-2026-40478 Published Apr 17, 2026
CVE-2026-40478
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Server-Side Template Injection via expression execution bypass. Red Hat rates this important (CVSS 8.5). Weakness: CWE-917. Affected package(s): devspaces/openvsx-rhel9:1779528224, devspaces/pluginregistry-rhel9:1779359423. Resolved in Red Hat advisory RHSA-2026:21772 — update the affected packages (`sudo dnf update`).
Affected versions
- devspaces/openvsx-rhel9:1779528224
- devspaces/pluginregistry-rhel9:1779359423
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
- RHSA-2026:21772
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:21772 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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