Medium6.5Red Hat & Ubuntu Linux
Authentication bypass due to incorrect HTTP Negotiate connection reuse
CVE-2026-5545 Published Apr 29, 2026
CVE-2026-5545
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Authentication bypass due to incorrect HTTP Negotiate connection reuse. Red Hat rates this moderate (CVSS 6.5). Weakness: CWE-488. Affected package(s): curl-main. Resolved in Red Hat advisory RHSA-2026:12916 — update the affected packages (`sudo dnf update`).
Affected versions
- curl-main-8.20.0-0.1.hum1
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:12916
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-2026:12916 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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