# CVE-2026-25242: Gogs allows unauthenticated file uploads

> Unauthenticated attackers can upload arbitrary files to Gogs instances, enabling malware hosting or disk exhaustion.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 Feb 2026
- **Updated:** 19 Feb 2026
- **Also known as:** GHSA-fc3h-92p8-h36f, GO-2026-4500

## What is CVE-2026-25242?

CVE-2026-25242 is a medium-severity missing authorization vulnerability in gogs, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Gogs is an open source self-hosted Git service. Versions 0.13.4 and below expose unauthenticated file upload endpoints by default. When the global RequireSigninView setting is disabled (default), any remote user can upload arbitrary files to the server via /releases/attachments and /issues/attachments. This enables the instance to be abused as a public file host, potentially leading to disk exhaustion, content hosting, or delivery of malware. CSRF tokens do not mitigate this attack due to same-origin cookie issuance. This issue has been fixed in version 0.14.1.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-25242?

3 open source packages ship an affected version, including gogs.io/gogs. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `gogs.io/gogs` | Go | All versions | None |
| `gogs.io/gogs` | Go | All versions | 0.14.1 |
| `gogs.io/gogs` | Go | All versions | 0.14.1 |

Products: Gogs Gogs.

## How do I fix CVE-2026-25242?

Upgrade gogs.io/gogs to 0.14.1 or later.

## Is CVE-2026-25242 being exploited?

There is no known exploitation of CVE-2026-25242 in the wild and no public exploit code.

## Other vulnerabilities in gogs

- [CVE-2025-8110](https://insights.sbomify.com/CVE-2025-8110/): Gogs Path Traversal (high 8.7, exploited in the wild)
- [CVE-2024-56731](https://insights.sbomify.com/CVE-2024-56731/): Gogs deletion of internal files allows remote command execution (critical 10.0)
- [CVE-2022-1884](https://insights.sbomify.com/CVE-2022-1884/): Remote Command Execution in gogs/gogs (critical 10.0)
- [CVE-2022-1986](https://insights.sbomify.com/CVE-2022-1986/): OS Command Injection in gogs/gogs (critical 10.0)
- [CVE-2022-1992](https://insights.sbomify.com/CVE-2022-1992/): Path Traversal in gogs/gogs (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25242 and fix it if it is affected.

What it is: CVE-2026-25242 is a medium-severity missing authorization vulnerability in gogs, published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-25242 in the wild and no public exploit code.

Affected packages and fixed versions:
- gogs.io/gogs (Go): affected all versions; no fix listed
- gogs.io/gogs (Go): affected all versions; fixed in 0.14.1
- gogs.io/gogs (Go): affected all versions; fixed in 0.14.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-25242/ (Markdown: https://insights.sbomify.com/CVE-2026-25242/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25242
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25242
- OSV: https://osv.dev/vulnerability/CVE-2026-25242

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25242/
Summaries are generated and may contain mistakes; the official description above is the record.