Server-side Request Forgery (SSRF) Affecting github.com/gohugoio/hugo/tpl/os package, versions >=0.162.0 <0.163.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGOHUGOIOHUGOTPLOS-17394017
- published22 Jun 2026
- disclosed19 Jun 2026
- creditUnknown
Introduced: 19 Jun 2026
CVE-2026-58404 (opens in a new tab)How to fix?
Upgrade github.com/gohugoio/hugo/tpl/os to version 0.163.1 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the resources.GetRemote process while the host platform uses the cgo system resolver. When alternate IPv4 encodings are used in URLs, such as integer, hexadecimal, or octal representations, which bypass the intended deny rules an attacker can access internal or cloud-metadata endpoints by supplying specially crafted URLs that resolve to restricted addresses, potentially exposing sensitive internal resources during build-time requests.