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.

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Fixes

Solution

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Workaround

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History

Fri, 08 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 07 May 2026 22:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Thu, 07 May 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Go Standard Library
Go Standard Library html/template
Vendors & Products Go Standard Library
Go Standard Library html/template

Thu, 07 May 2026 20:00:00 +0000

Type Values Removed Values Added
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.
Title Escaper bypass leads to XSS in html/template
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Go

Published:

Updated: 2026-05-08T14:05:05.849Z

Reserved: 2026-04-07T18:13:03.528Z

Link: CVE-2026-39826

cve-icon Vulnrichment

Updated: 2026-05-08T14:05:00.652Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-05-07T20:16:43.490

Modified: 2026-05-08T15:16:37.680

Link: CVE-2026-39826

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T19:00:12Z

Weaknesses