CVE-2024-24785: Errors in JSON Marshaling Break Template Escaping in html/template
Summary
CVE-2024-24785: Errors returned from JSON marshaling may break template escaping in html/template. Affects stdlib across 2 version ranges.
< 1.21.8
>= 1.22.0-0, < 1.22.1
Fixed in 1.21.8 or 1.22.1, depending on the release line you run. How to fix ↓
Also tracked for
- golang · Bitnami
- golang-1.15 · Debian:11
The same CVE-2024-24785 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
The stdlib package in the Go ecosystem is a collection of standard libraries that provide fundamental functionality for Go programs. One of these packages is html/template, which is used for generating HTML output. The html/template package includes auto-escaping behavior to prevent injection attacks and ensure the security of generated HTML templates.
Vulnerability Detail
The vulnerability arises when errors returned from MarshalJSON methods contain user-controlled data. This can lead to a break in the contextual auto-escaping behavior of the html/template package. As a result, unexpected content can be injected into templates, potentially leading to cross-site scripting (XSS) attacks or other security vulnerabilities.
How To Fix
Latest published version: go1.25.5 as of 22 Oct 2026
go get stdlib@vgo1.25.5Upgrading to it may include breaking changes; the versions below are the minimum fixed release for this vulnerability.
If you can't move to the latest
The minimum fixed version depends on the release line you run.
-
< 1.21.81.21.8go get stdlib@v1.21.8 -
>= 1.22.0-0, < 1.22.11.22.1go get stdlib@v1.22.1
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Workaround
There is no known workaround for this vulnerability. It is essential to update to the fixed version as soon as possible.
Conclusion
The vulnerability in the stdlib package's html/template package can lead to unexpected content injection in templates, potentially resulting in XSS attacks or other security issues. It is highly recommended to update to the fixed version (1.22.1 or later) to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for stdlib →
FAQ
The vulnerability allows for unexpected content injection into templates, which can lead to cross-site scripting (XSS) attacks or other security vulnerabilities.
Versions 0 and 1.22.0-0 of the stdlib package are affected. The vulnerability is fixed in version 1.22.1.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. No signup is required, and you can simply provide your Gopkg.lock file to analyze your application's vulnerability status.
No, there is no known workaround for this vulnerability. It is crucial to update to the fixed version of the stdlib package.
You can find more information about this vulnerability in the Go vulnerability database at https://vuln.go.dev/ID/GO-2024-2610.json.
References
Related vulnerabilities
Recent vulnerabilities recorded for stdlib.
