CVE-2026-39823

6.1 Moyenne

Publiée le 07/05/2026 à 22:16 · Modifiée le 17/06/2026 à 12:42 · Analysée par le NVD · Source : security@golang.org

Description

CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <content> attribute. If the URL content were to insert ASCII whitespaces around the '=' rune inside of the <content> attribute, the escaper would fail to similarly escape it, leading to XSS.

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Produits concernés

Go standard library html/template
Golang go

Scores CVSS

Version	Score	Source	Vecteur
3.1	6.1 Moyenne	134c704f-9b21-4f2e-91b3-4a467353bcc0	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-79

Références

https://go.dev/cl/769920 Patch
https://go.dev/issue/78913 Issue Tracking
https://groups.google.com/g/golang-announce/c/qcCIEXso47M Release Notes
https://pkg.go.dev/vuln/GO-2026-4982 Vendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories