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CRITICAL severity

Daptin has Unauthenticated Path Traversal and Zip SlipGHSA-9cp7-j3f8-p5jx

CRITICALFix: daptin/daptin@8d626bb

GHSA-9cp7-j3f8-p5jx is a critical-severity (CVSS 10) remote code execution vulnerability in github.com/daptin/daptin. A fix is available for github.com/daptin/daptin — see the affected versions and patch details below.

Also known asGO-2026-5285
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jun 25, 2026 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐹github.com/daptin/daptin

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/daptin/daptinall versions0.12.0go get github.com/daptin/daptin@v0.12.0

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/daptin/daptin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/daptin/daptin to 0.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9cp7-j3f8-p5jx is resolved across your whole dependency graph.

  3. Workarounds

    Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.

Frequently Asked Questions

### 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 Restri
O3 Security · Impact-Aware SCA

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Daptin has Unauthenticated Path Traversal and Zip Slip