Symlink Attack Affecting github.com/gohugoio/hugo/tpl/os package, versions >=0.123.0 <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.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGOHUGOIOHUGOTPLOS-17394004
- published22 Jun 2026
- disclosed19 Jun 2026
- creditUnknown
Introduced: 19 Jun 2026
CVE-2026-58403 Â (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 Symlink Attack via the os.ReadFile() function during direct lookups via resources.Get. An attacker can access arbitrary files outside the intended directory by placing a symlink inside a mounted directory that points to files outside the mount, thereby bypassing directory confinement.