# CVE-2026-52797: Gogs path traversal and argument injection in git diff preview

Source: https://junglewise.ai/threats/cve-2026-52797-gogs-path-traversal-and-argument-injection-in-git-diff-preview  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-24. Updated: 2026-06-24  
License: CC BY 4.0 with a link back

CVE-2026-52797 · Severity: high · CVSS 8.5 · Published 2026-06-24

Gogs is an open-source self-hosted Git service used by teams to manage source code. A vulnerability in the file preview feature allows an authorized user to manipulate internal commands to overwrite critical system files. This can lead to a complete service outage (Denial of Service) by corrupting the application's database or configuration files, potentially requiring manual restoration from backups.

Technologies: [gogs.io/gogs (Go)](https://junglewise.ai/threats/technologies/gogs-io-gogs), [Gogs](https://junglewise.ai/threats/technologies/gogs). Vendors: [Go](https://junglewise.ai/threats/vendors/go), [Gogs](https://junglewise.ai/threats/vendors/gogs).

## Quick answers

**Is CVE-2026-52797 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-52797 being exploited in the wild.

**How severe is CVE-2026-52797?** High severity, with a CVSS score of 8.5, published 24 June 2026.

**Which products and versions are affected?** gogs.io/gogs (Go) <= 0.13.4, SEMVER:introduced=0, SEMVER:introduced=0,fixed=0.14.0; Gogs < 0.14.0, <= 0.13.4.

**Is there a fix for CVE-2026-52797?** Yes. gogs.io/gogs (Go): upgrade to 0.14.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-52797 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-52797?** Check whether you run gogs.io/gogs (Go) or Gogs 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

- gogs.io/gogs (Go): upgrade to 0.14.0 or later

  ```sh
  go get gogs.io/gogs@v0.14.0
  ```


## Technical details

A path traversal and argument injection vulnerability exists in the `DiffPreviewPost` function within `internal/route/repo/editor.go`. The application fails to properly sanitize the `:path_to_file` parameter before passing it to the `git diff` command via `exec.Command`. By exploiting specific behaviors of the Go `path.Clean` function (e.g., using `/../` sequences), an attacker can bypass repository boundary checks. This allows the injection of the `--output=<file>` flag into the Git command, enabling the attacker to overwrite arbitrary files on the host filesystem, such as `gogs.db` or `app.ini`, with the results of a diff comparison. This results in a Denial of Service (DoS). The issue is fixed in version 0.14.0 by ensuring the path is properly filtered using `pathutil.Clean` before use.

## Affected products

- Gogs Gogs < 0.14.0

## Identifiers

- CVE-2026-52797
- GHSA-pm6v-2h4w-4rp2
- GO-2026-5545

## Timeline

- 2026-06-03: advisory: GitHub Security Advisory published
- 2026-06-24: disclosed: CVE published to NVD
- 2026-06-24: patched: Fix released in version 0.14.0

## References

- [https://github.com/gogs/gogs/security/advisories/GHSA-pm6v-2h4w-4rp2](https://github.com/gogs/gogs/security/advisories/GHSA-pm6v-2h4w-4rp2)

## Related threats

- [Gogs Git Smart HTTP authorization bypass](https://junglewise.ai/threats/cve-2026-123012-in-gogs-0-14-3-the-git-smart-http-authorization-layer-in)
- [Gogs open redirect via backslash normalization mismatch](https://junglewise.ai/threats/cve-2026-82402-gogs-is-an-open-source-self-hosted-git-service-prior-to-0-15-0)
- [GO-2026-5193 - Gogs: XSS in .ipynb files renderer due to outdated notebookjs in gogs.io/gogs](https://junglewise.ai/threats/go-2026-5193-gogs-xss-in-ipynb-files-renderer-due-to-outdated-d1e8727f)
- [Gogs stored XSS in Jupyter Notebook sanitizer endpoint](https://junglewise.ai/threats/cve-2026-52816-gogs-stored-xss-in-jupyter-notebook-sanitizer-endpoint)
- [Gogs unauthenticated information disclosure in organization teams API](https://junglewise.ai/threats/cve-2026-52815-gogs-unauthenticated-information-disclosure-in-organization-teams)