Quick answers
- Is CVE-2026-57894 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-57894 being exploited in the wild.
- How severe is CVE-2026-57894?
- High severity, with a CVSS score of 8.5, published 21 July 2026.
- Which products and versions are affected?
- Gitea < 1.27.0; code.gitea.io/gitea (Go) < 1.27.0, SEMVER:introduced=0,fixed=1.27.0; gitea.dev (Go) SEMVER:introduced=0,fixed=1.27.0.
- Is there a fix for CVE-2026-57894?
- Yes. code.gitea.io/gitea (Go): upgrade to 1.27.0 or later; gitea.dev (Go): upgrade to 1.27.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-57894 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-57894?
- Check whether you run Gitea, code.gitea.io/gitea (Go) or gitea.dev (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- code.gitea.io/gitea (Go): upgrade to 1.27.0 or later
go get code.gitea.io/gitea@v1.27.0 - gitea.dev (Go): upgrade to 1.27.0 or later
go get gitea.dev@v1.27.0
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in Gitea's repository migration and pull mirror features. While Gitea validates the initial migration URL against an allow/block list, it delegates the actual 'git clone' and 'git fetch' operations to the Git CLI. By default, Git follows HTTP redirects (http.followRedirects=initial), which Gitea does not re-validate. An authenticated attacker can provide a public URL that redirects to an internal Git service (e.g., 127.0.0.1 or internal hostnames). This allows the attacker to import internal repository contents, including history and secrets, into a Gitea repository they control. The issue is fixed in version 1.27.0 by disabling redirect following in Git commands.
Affected products
- Gitea Gitea < 1.27.0
Identifiers
- CVE-2026-57894
- GHSA-82f7-87hm-852x
- GO-2026-6027
Timeline
- 2026-07-13: advisory: Initial GitHub Advisory published
- 2026-07-21: patched: Version 1.27.0 released