Medium5.4Red Hat & Ubuntu Linux
Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content
CVE-2026-39823 Published May 7, 2026
CVE-2026-39823
Affected products & platforms
Red Hat & Ubuntu LinuxUnclassified
Summary
Go html/template: Cross-Site Scripting via improper URL escaping in meta tag content. Red Hat rates this moderate (CVSS 5.4). Weakness: CWE-79. Affected package(s): golang1. Resolved in Red Hat advisory RHSA-2026:23262 — update the affected packages (`sudo dnf update`).
Affected versions
- golang1-25-main-1.25.11-2.hum1
- golang1-26-main-1.26.4-2.hum1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
- RHSA-2026:23262
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Update the affected package(s) to the fixed version shipped in RHSA-2026:23262 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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