High8.0Red Hat & Ubuntu Linux
Model Context Protocol (MCP) Go SDK: DNS rebinding vulnerability allows unauthorized access
CVE-2026-34742 Published Apr 2, 2026
CVE-2026-34742
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Model Context Protocol (MCP) Go SDK: DNS rebinding vulnerability allows unauthorized access. Red Hat rates this important (CVSS 8). Weakness: CWE-1188. Affected package(s): devspaces/udi-rhel9:1779829736. Resolved in Red Hat advisory RHSA-2026:21772 — update the affected packages (`sudo dnf update`).
Affected versions
- devspaces/udi-rhel9:1779829736
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:21772
Official advisory · high-confidence parse· fetched 5 hours 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 5 hours ago·verify at source
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