Medium6.8Red Hat & Ubuntu Linux
Authentication bypass due to incorrect connection reuse with Negotiate authentication
CVE-2026-1965 Published Mar 11, 2026
CVE-2026-1965
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Authentication bypass due to incorrect connection reuse with Negotiate authentication. Red Hat rates this moderate (CVSS 6.8). Weakness: CWE-303. Affected package(s): curl-main. Resolved in Red Hat advisory RHSA-2026:6893 — update the affected packages (`sudo dnf update`).
Affected versions
- curl-main-8.19.0-3.hum1
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
Fixed versions
- RHSA-2026:6893
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-2026:6893 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 5 hours ago·verify at source
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