High8.6Vendor: MediumRed Hat & Ubuntu Linux
Sandbox escape via internal HTTP built-ins leading to network restriction bypass
CVE-2026-47139 Published Jun 12, 2026
CVE-2026-47139
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Sandbox escape via internal HTTP built-ins leading to network restriction bypass. Red Hat rates this moderate (CVSS 8.6). Weakness: CWE-1100. Affected package(s): rhdh/rhdh-hub-rhel9:1782761244. Resolved in Red Hat advisory RHSA-2026:33574 — update the affected packages (`sudo dnf update`).
Affected versions
- rhdh/rhdh-hub-rhel9:1782761244
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Fixed versions
- RHSA-2026:33574
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:33574 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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