CVE-2026-39826

MediumCVSS 6.1/10Last modified Oct 26, 2026

Description

If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-116

Affected software

Vendor	Product	Versions
Go standard library	html/template	< 1.25.10; >= 1.26.0-0, < 1.26.3

References

https://go.dev/cl/771180Patch
https://go.dev/issue/78981Patch
https://groups.google.com/g/golang-announce/c/qcCIEXso47MRelease Notes
https://pkg.go.dev/vuln/GO-2026-4980Vendor Advisory

Timeline

Published: May 7, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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