6.1
Medium
CVE-2026-39823 CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a tag's …
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| html/template 1.26 | 1.26.0-0 → < 1.26.3 | 1.26.3 |
| html/template 1.25 | earliest → < 1.25.10 | 1.25.10 |
References
- go.dev go.dev
- go.dev go.dev
- groups.google.com groups.google.com
- pkg.go.dev pkg.go.dev
Timeline
- Published
- Last modified
Other CVEs of html/template
The 14 CVEs of html/template →
CVE-2026-97030
A trusted template author may have previously written a valid template wherein the use of the 'yield' keyword would…
6.1
Medium
CVE-2026-94448
When a JavaScript template literal contains consecutive expressions, the context tracking state was not properly reset…
6.1
Medium
CVE-2026-56858
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject…
6.1
Medium
CVE-2026-39826
If a trusted template author were to write a tag containing an empty 'type' attribute or a 'type' attribute with an…
6.1
Medium