Medium5.3Red Hat & Ubuntu Linux
Proxy credential disclosure via redirects to unauthenticated proxies
CVE-2026-6253 Published Apr 29, 2026
CVE-2026-6253
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Proxy credential disclosure via redirects to unauthenticated proxies. Red Hat rates this moderate (CVSS 5.3). Weakness: CWE-201. 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 6 hours ago·verify at source
Fixed versions
- RHSA-2026:12916
Official advisory · high-confidence parse· fetched 6 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 6 hours ago·verify at source
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