Medium6.5Red Hat & Ubuntu Linux
Authorization bypass via IP spoofing in HTTP/3 QUIC module
CVE-2026-40460 Published May 13, 2026
CVE-2026-40460
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Authorization bypass via IP spoofing in HTTP/3 QUIC module. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-290. Affected package(s): nginx-main. Resolved in Red Hat advisory RHSA-2026:20351 — update the affected packages (`sudo dnf update`).
Affected versions
- nginx-main-1.30.2-1.hum1
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:20351
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-2026:20351 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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