What is CVE-2026-5160?

CVE-2026-5160 is a medium-severity vulnerability in Github.com/yuin/goldmark/renderer/html, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-15.

How severe is CVE-2026-5160?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Github.com/yuin/goldmark/renderer/html

CVE-2026-5160

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (15.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

N/a Github.com/yuin/goldmark/renderer/html — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMYUINGOLDMARKRENDERERHTML-15838406
github.com/yuin/goldmark/commit/cb46bbc4eca29d55aa9721e04ad207c23ccc44f9

Frequently asked questions

What is CVE-2026-5160?: CVE-2026-5160 is a medium-severity vulnerability in Github.com/yuin/goldmark/renderer/html, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-15.
How severe is CVE-2026-5160?: Medium severity. CVSS v3 base score is 6.1 out of 10.