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Name
CVE-2026-39823
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://go.dev/issue/78913Issue Tracking
https://pkg.go.dev/vuln/GO-2026-4982Vendor Advisory
Analysis#
Vulnerability Ratings#
6.1
CVSSv31
NaN
other
Others affected components#
Name
Project
Project Version
Version
Status
openwrt
master
1.24.13-r1
Exploitable
openwrt
master
1.27.1-r1
Not Affected
openwrt
openwrt-25.12
1.24.13-r1
Exploitable
openwrt
openwrt-25.12
1.26.8-r1
Not Affected
openwrt
openwrt-25.12
1.27.1-r1
Not Affected
yocto
master
1.27.1
Not Affected
yocto
master
1.27.1
Not Affected
yocto
scarthgap
1.22.12
Patched
yocto
scarthgap
1.22.12
Exploitable
Resolved with patches#
go (yocto:scarthgap)
#
Title
Author
Resolve
1
[release-branch.go1.25] html/template: fix escaping of URLs
Neal Patel <nealpatel@google.com>
CVE-2026-39823