# CVE-2026-58417: Gitea information disclosure in private organization membership API

Source: https://junglewise.ai/threats/cve-2026-58417-gitea-information-disclosure-in-private-organization-membership  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-21. Updated: 2026-07-21  
License: CC BY 4.0 with a link back

CVE-2026-58417 · Severity: medium · CVSS 4 · Published 2026-07-21

Gitea is a self-hosted software development service similar to GitHub. A security flaw in its programming interface (API) allows registered users to discover if someone is a member of a private organization, even when that organization is set to be hidden. This could lead to the unauthorized disclosure of sensitive professional or project-related associations that were intended to remain confidential.

Technologies: [Gitea](https://junglewise.ai/threats/technologies/gitea), [gitea.dev (Go)](https://junglewise.ai/threats/technologies/gitea-dev). Vendors: [Gitea](https://junglewise.ai/threats/vendors/gitea), [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2026-58417 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-58417 being exploited in the wild.

**How severe is CVE-2026-58417?** Medium severity, with a CVSS score of 4, published 21 July 2026.

**Which products and versions are affected?** Gitea < 1.27.0; gitea.dev (Go) < 1.27.0, SEMVER:introduced=0,fixed=1.27.0.

**Is there a fix for CVE-2026-58417?** Yes. 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-2026-58417 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-58417?** Check whether you run Gitea 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

- gitea.dev (Go): upgrade to 1.27.0 or later

  ```sh
  go get gitea.dev@v1.27.0
  ```


## Technical details

An information disclosure vulnerability exists in Gitea's REST API due to improper authorization checks in the '/orgs/{org}/public_members/{username}' GET endpoint. While the web interface correctly hides private organizations and their memberships, the API endpoint returns a 204 No Content status code if a user is a member, even if the organization is private. An attacker with a valid user account and access token can programmatically query memberships of private organizations. This bypasses intended visibility restrictions (CWE-200, CWE-863). The issue is resolved in version 1.27.0.

## Affected products

- Gitea Gitea < 1.27.0

## Identifiers

- CVE-2026-58417
- GHSA-jr5x-6h83-wrxf
- GO-2026-6063

## Timeline

- 2026-07-13: disclosed: Initial disclosure to vendor
- 2026-07-21: advisory: GitHub Advisory published
- 2026-07-21: patched: Fix released in version 1.27.0

## References

- [https://api.github.com/users/maluff](https://api.github.com/users/maluff)
- [https://github.com/maluff](https://github.com/maluff)
- [https://api.github.com/users/maluff/gists%7B/gist_id%7D](https://api.github.com/users/maluff/gists%7B/gist_id%7D)
- [https://api.github.com/users/maluff/repos](https://api.github.com/users/maluff/repos)
- [https://avatars.githubusercontent.com/u/32894288?v=4](https://avatars.githubusercontent.com/u/32894288?v=4)
- [https://api.github.com/users/maluff/events%7B/privacy%7D](https://api.github.com/users/maluff/events%7B/privacy%7D)

## Related threats

- [Gitea account takeover via OAuth2 auto-linking](https://junglewise.ai/threats/cve-2026-120263-when-oauth2-client-account-linking-is-set-to-auto-not-the)
- [Gitea limited-visibility profile disclosure via public-only token](https://junglewise.ai/threats/cve-2026-119627-the-web-profile-and-rss-atom-feed-routes-of-users-and)
- [Gitea token scope bypass in web routes](https://junglewise.ai/threats/cve-2026-119625-the-username-web-route-accepted-personal-access-tokens-over-http)
- [Gitea project boards information disclosure of private pull requests](https://junglewise.ai/threats/cve-2026-119533-repository-and-organization-project-boards-listed-the-pull)
- [Gitea API token scope bypass in repository deletion](https://junglewise.ai/threats/cve-2026-119441-delete-api-v1-orgs-org-repos-deletes-all-repositories-of-an)