# CVE-2025-64719: Gogs denial of service via malformed filenames in repository or wiki

Source: https://junglewise.ai/threats/cve-2025-64719-gogs-denial-of-service-via-malformed-filenames-in-repository-or  
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-2025-64719 · Severity: medium · CVSS 4.9 · Published 2026-06-24

Gogs is an open-source service used by teams to host and manage Git repositories and wikis. A vulnerability allows a user with file-creation permissions to crash specific repository or wiki pages by using specially crafted filenames. This results in a denial-of-service where the web interface becomes unusable for that specific project, potentially disrupting development workflows and access to documentation.

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-2025-64719 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-64719 being exploited in the wild.

**How severe is CVE-2025-64719?** Medium severity, with a CVSS score of 4.9, published 24 June 2026.

**Which products and versions are affected?** gogs.io/gogs (Go) <= 0.14.2, SEMVER:introduced=0, SEMVER:introduced=0,fixed=0.14.3; Gogs < 0.14.3, <= 0.14.2.

**Is there a fix for CVE-2025-64719?** Yes. gogs.io/gogs (Go): upgrade to 0.14.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-64719 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2025-64719?** 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 0.14.3 or later

  ```sh
  go get gogs.io/gogs@v0.14.3
  ```


## Technical details

A denial-of-service vulnerability exists in Gogs due to improper input validation of filenames in the repository and wiki viewing components. The issue resides in 'internal/route/repo/wiki.go' and 'internal/route/repo/view.go', where the application fails to properly handle Git pathspec characters (such as '*', '?', '[', ']') in filenames. When a file with an incomplete or malformed pathspec sequence (e.g., '[]') is created, the backend fails to recover commit information and returns an unhandled 500 error. An attacker with high privileges (write access) can exploit this to make the web interface for a repository or wiki inaccessible. The vulnerability is fixed in version 0.14.3.

## Affected products

- Gogs Gogs < 0.14.3

## Identifiers

- CVE-2025-64719
- GHSA-3qq3-668m-v9mj
- GO-2026-5098

## Timeline

- 2026-06-19: advisory: GitHub Security Advisory published
- 2026-06-24: disclosed: CVE published to NVD

## References

- [https://github.com/gogs/gogs/security/advisories/GHSA-3qq3-668m-v9mj](https://github.com/gogs/gogs/security/advisories/GHSA-3qq3-668m-v9mj)

## 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)