CVE-2026-5160 (GCVE-0-2026-5160)
Vulnerability from cvelistv5
Published
2026-04-15 05:00
Modified
2026-04-15 18:07
CWE
  • CWE-79 - Cross-site Scripting (XSS)
Summary
Versions of the package github.com/yuin/goldmark/renderer/html before 1.7.17 are vulnerable to Cross-site Scripting (XSS) due to improper ordering of URL validation and normalization. The renderer validates link destinations using a prefix-based check (IsDangerousURL) before resolving HTML entities. This allows an attacker to bypass protocol filtering by encoding dangerous schemes using HTML5 named character references. For example, a payload such as javascript:alert(1) is not recognized as dangerous during validation, leading to arbitrary script execution in the context of applications that render the URL.
Impacted products
Vendor Product Version
n/a github.com/yuin/goldmark/renderer/html Version: 0   
Show details on NVD website


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