CVE-2026-42502

Parsing arbitrary HTML which is then rendered using Render can result in an unexpected HTML tree. This can be leveraged to execute XSS attacks in applications that attempt to sanitize input HTML before rendering.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://go.dev/cl/781701	Issue Tracking
https://go.dev/issue/79572	Issue Tracking
https://groups.google.com/g/golang-announce/c/iI-mYSI0lu8	Mailing List
https://pkg.go.dev/vuln/GO-2026-5027	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:golang:net:*:*:*:*:*:go:*:*

History

No history.

Information

Published : 2026-05-22 16:16

Updated : 2026-07-23 16:10

NVD link : CVE-2026-42502

Mitre link : CVE-2026-42502

CVE.ORG link : CVE-2026-42502

JSON object : View

Products Affected

golang

net

CWE

CWE-1021

Improper Restriction of Rendered UI Layers or Frames

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