Quick answers
- Is CVE-2026-58437 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-58437 being exploited in the wild.
- How severe is CVE-2026-58437?
- High severity, with a CVSS score of 7.1, 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-2026-58437?
- 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-2026-58437 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-58437?
- 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
The vulnerability exists in the `HookPostReceive` function within `routers/private/hook_post_receive.go`. Gitea processes undocumented Git push options (`repo.private` and `repo.template`) using the `-o` flag during a `git push`. While intended for 'push-to-create' workflows, these options are processed for existing repositories without triggering the standard repository service logic. Consequently, changes to visibility or template status bypass the activity log, webhook events, and the `updated_at` timestamp update due to the use of `UpdateRepositoryColsNoAutoTime`. An attacker with admin-collaborator or owner permissions can use this to exfiltrate data or perform supply-chain attacks by silently toggling template designations. The issue is fixed in version 1.27.0.
Affected products
- Gitea Gitea < 1.27.0
Identifiers
- CVE-2026-58437
- GHSA-8p9h-49rc-qgxj
- GO-2026-6047
Timeline
- 2026-07-13: patched: Fixed in version 1.27.0
- 2026-07-21: advisory: GitHub Advisory published