CVE-2026-39826
Escaper bypass leads to XSS in html/template
6.1
MEDIUM
CVSS 3.1
EPSS 0.01%
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.
How to fix CVE-2026-39826
To remediate CVE-2026-39826, upgrade the affected package to a fixed version below.
- Bitnami/golang—upgrade to 1.25.10 or later
- —no fix listed
- —no fix listed
- —no fix listed
- —upgrade to 1.25.10-1 or later
- —upgrade to 1.26.3-1 or later
- —upgrade to 1.25.10 or later
Is CVE-2026-39826 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (7)
- from 0, < 1.25.10, >= 1.26.0-0, < 1.26.3
- from 0
- from 0
- from 0
- from 0, < 1.25.10-1
- from 0, < 1.26.3-1
- from 0, < 1.25.10, >= 1.26.0-0, < 1.26.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |