# GHSA-9cp7-j3f8-p5jx: Daptin has Unauthenticated Path Traversal and Zip Slip

> Unauthenticated attackers can exploit path traversal and zip slip in Daptin to write arbitrary files and potentially execute remote code.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Apr 2026
- **Also known as:** GO-2026-5285

## What is GHSA-9cp7-j3f8-p5jx?

GHSA-9cp7-j3f8-p5jx is a path traversal vulnerability in github.com/daptin/daptin, published on 10 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

### Impact
The `cloudstore.file.upload` action in `server/actions/action_cloudstore_file_upload.go` writes user-supplied filenames directly to disk without proper validation. 

This allows unauthenticated attackers to perform path traversal and zip slip attacks, leading to arbitrary file write and potential remote code execution.

**CVSS Score:** 10.0 Critical
**CVSS Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
**CWE:** CWE-22 (Path Traversal)

### Patches

Upgrade to a patched version once released. The vulnerability affects all versions <= v0.11.3 (latest).

### Workarounds

Restrict access to the cloudstore.file.upload action through authentication and authorization controls until a patch is available.

## Which versions are affected by GHSA-9cp7-j3f8-p5jx?

3 open source packages ship an affected version, including github.com/daptin/daptin.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/daptin/daptin` | Go | All versions | 0.12.0 |
| `github.com/daptin/daptin` | Go | All versions | 0.12.0 |
| `github.com/daptin/daptin` | Go | All versions | 0.12.0 |

## How do I fix GHSA-9cp7-j3f8-p5jx?

Upgrade github.com/daptin/daptin to 0.12.0 or later.

## Is GHSA-9cp7-j3f8-p5jx being exploited?

There is no known exploitation of GHSA-9cp7-j3f8-p5jx in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-9cp7-j3f8-p5jx and fix it if it is affected.

What it is: GHSA-9cp7-j3f8-p5jx is a path traversal vulnerability in github.com/daptin/daptin, published on 10 Apr 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 GHSA-9cp7-j3f8-p5jx in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/daptin/daptin (Go): affected all versions; fixed in 0.12.0
- github.com/daptin/daptin (Go): affected all versions; fixed in 0.12.0
- github.com/daptin/daptin (Go): affected all versions; fixed in 0.12.0

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/GHSA-9cp7-j3f8-p5jx/ (Markdown: https://insights.sbomify.com/GHSA-9cp7-j3f8-p5jx/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-9cp7-j3f8-p5jx

---
From sbomify Insights: https://insights.sbomify.com/GHSA-9cp7-j3f8-p5jx/
Summaries are generated and may contain mistakes; the official description above is the record.