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.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
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 | 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.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
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.
Sources
Also known as GO-2026-5285.