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CRITICAL severity

GHSA-9cp7-j3f8-p5jx daptin

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.

Daptin has Unauthenticated Path Traversal and Zip Slip

Also known asGO-2026-5285
Published
Apr 10, 2026
Updated
Jun 25, 2026
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

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-9cp7-j3f8-p5jx can be triaged on real exposure rather than presence alone.

Tailored to GHSA-9cp7-j3f8-p5jx. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

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

Is GHSA-9cp7-j3f8-p5jx in your dependencies?

O3 Security finds GHSA-9cp7-j3f8-p5jx across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-9cp7-j3f8-p5jx: daptin RCE (Critical 10) | O3 Security