External Control of File Name or Path Affecting github.com/go-gitea/gitea/modules/uri package, versions <1.27.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-GITHUBCOMGOGITEAGITEAMODULESURI-19644154
- published8 Sept 2026
- disclosed21 Jul 2026
- creditisa0-gh
Introduced: 21 Jul 2026
CVE-2026-58420 Â (opens in a new tab)How to fix?
Upgrade github.com/go-gitea/gitea/modules/uri to version 1.27.0 or higher.
Overview
Affected versions of this package are vulnerable to External Control of File Name or Path via the uri.Open function. An attacker can read arbitrary files from the server filesystem by supplying a crafted archive with a release.yml containing a DownloadURL field using the file:// scheme.
Note: This is only exploitable if the attacker can supply an archive to the restore-repo command executed by an operator or administrator.
Workaround
This vulnerability can be mitigated by restricting execution of the restore-repo command to fully trusted operators, manually auditing archive contents before restoration, and reviewing existing release attachments for unexpected or sensitive filenames.