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CVE-2026-5160

Quick assessment

Affected
n/a github.com/yuin/goldmark/renderer/html
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

goldmark是Yusuke Inuzuka个人开发者的一个Go语言编写的Markdown解析器。 goldmark 1.7.17之前版本存在安全漏洞，该漏洞源于URL验证和规范化顺序不当，可能导致跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.29% · P21
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I. Basic Information for CVE-2026-5160

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
goldmark 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
goldmark是Yusuke Inuzuka个人开发者的一个Go语言编写的Markdown解析器。 goldmark 1.7.17之前版本存在安全漏洞，该漏洞源于URL验证和规范化顺序不当，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- github.com/yuin/goldmark/renderer/html 0 ~ 1.7.17 -

II. Public POCs for CVE-2026-5160

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III. Intelligence Information for CVE-2026-5160

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Patches & Fixes for CVE-2026-5160 (1)

Same Patch Batch · n/a · 2026-04-15 · 14 CVEs total

CVE-2026-30617 LangChain-Chatchat 安全漏洞
CVE-2026-30995 Slah CMS 安全漏洞
CVE-2026-30996 SoftSul SAC-NFe 安全漏洞
CVE-2026-30624 Agent Zero 安全漏洞
CVE-2026-30615 Windsurf 安全漏洞
CVE-2026-30461 FUEL CMS 安全漏洞
CVE-2026-30364 CentSDR 安全漏洞
CVE-2026-30994 Slah CMS 安全漏洞
CVE-2026-30616 Jaaz 安全漏洞
CVE-2026-30993 Slah CMS 安全漏洞
CVE-2026-30625 Upsonic 安全漏洞
CVE-2024-53412 Shopping Cart 安全漏洞
CVE-2025-67841 Nordic Semiconductor IronSide SE 安全漏洞

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-5160

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