Medium6.2Red Hat & Ubuntu Linux
.NET: Local file tampering via link following vulnerability
CVE-2026-45491 Published Jun 9, 2026
CVE-2026-45491
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
.NET: Local file tampering via link following vulnerability. Red Hat rates this moderate (CVSS 6.2). Weakness: CWE-59. Affected package(s): dotnet8, dotnet8.0, dotnet9.0, dotnet9, dotnet10.0, dotnet10. Resolved in Red Hat advisory RHSA-2026:25110 — update the affected packages (`sudo dnf update`).
Affected versions
- dotnet8-0-main-8.0.128-1.hum1
- dotnet8.0-0:8.0.128-1.el10_2
- dotnet9.0-0:9.0.118-1.el10_2
- dotnet9.0-0:9.0.118-1.el8_10
- dotnet8.0-0:8.0.128-1.el9_6
- dotnet8.0-0:8.0.128-1.el9_8
- dotnet9-0-main-9.0.117-1.hum1
- dotnet9.0-0:9.0.118-1.el10_0
- dotnet9.0-0:9.0.118-1.el9_6
- dotnet8.0-0:8.0.128-1.el8_10
- dotnet10.0-0:10.0.109-1.el9_8
- dotnet10.0-0:10.0.109-1.el8_10
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
- RHSA-2026:25110
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:25110 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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