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GHSA-hqwm-7x7x-8379

HIGH

GHSA-hqwm-7x7x-8379 is a high-severity (CVSS 7.7) vulnerability in github.com/loft-sh/devspace. O3 Security confirms whether GHSA-hqwm-7x7x-8379 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

DevSpace UI Server WebSocket CheckOrigin does not validate source

Also known asCVE-2026-42283GO-2026-5433
Published
May 6, 2026
Updated
Jun 25, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐹github.com/loft-sh/devspace

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

Description

DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser to establish a cross-origin WebSocket connection to ws://127.0.0.1:8090. This allows an attacker to access:

  • /api/logs to stream real-time pod logs
  • /api/enter to open an interactive shell inside the running pod
  • /api/command to execute pre-defined pipeline commands

Patches

Versions 6.3.21 and above are patched.

Resources

gorilla/websocket CheckOrigin documentation

Installation Options

Devspace is no longer publishing to NPM or Yarn, please continue to use our other installation methods to get updates in the future, including this patch.

Credit

DevSpace thanks @b0b0haha for finding and reporting this vulnerability.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/loft-sh/devspace6.3.20&&< 6.3.216.3.21

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/loft-sh/devspace. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/loft-sh/devspace to 6.3.21 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hqwm-7x7x-8379 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 pinpoints whether GHSA-hqwm-7x7x-8379 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-hqwm-7x7x-8379. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Description DevSpace's UI server WebSocket accepts connections from all origins by default, and therefore several endpoints are exposed via this WebSocket. When a developer runs the DevSpace UI and at the same time uses a browser to access the internet, a malicious website they visit can use their browser to establish a cross-origin WebSocket connection to `ws://127.0.0.1:8090`. This allows an attacker to access: * `/api/logs` to stream real-time pod logs * `/api/enter` to open an interactive shell inside the running pod * `/api/command` to execute pre-defined pipeline commands ### Patc
O3 Security · Impact-Aware SCA

Is GHSA-hqwm-7x7x-8379 in your dependencies?

O3 detects GHSA-hqwm-7x7x-8379 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.