GHSA-xq7h-vwjp-5vrh

Source

https://github.com/advisories/GHSA-xq7h-vwjp-5vrh

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xq7h-vwjp-5vrh/GHSA-xq7h-vwjp-5vrh.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-xq7h-vwjp-5vrh

Published

2026-03-25T17:30:46Z

Modified

2026-03-25T17:46:26.776834Z

Severity

6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

@grackle-ai/powerline Runs Without Authentication by Default

Details

Impact

When --token is not provided and GRACKLE_POWERLINE_TOKEN is not set, the PowerLine gRPC server runs with zero authentication. A warning is logged ("NO AUTH (development only)") but nothing prevents deployment in this state. Any client that can reach the PowerLine port can spawn agent sessions, access credential tokens, and execute code.

The default binding is 127.0.0.1 (loopback only), which limits exposure to the local machine. However, if PowerLine is accidentally exposed on a network (e.g., in a container or via port forwarding), the impact is critical.

Affected code: - packages/powerline/src/index.ts:46 — token defaults to empty string - packages/powerline/src/index.ts:63-76 — auth interceptor is only added when token is truthy

Patches

0.70.1

Fix: Require an explicit --no-auth flag to run without authentication, rather than defaulting to no auth when the token is empty. Throw an error if starting without a token and without --no-auth.

Workarounds

Always provide --token or set GRACKLE_POWERLINE_TOKEN when starting PowerLine. The Grackle server does this automatically when managing PowerLine lifecycle.

Resources

CWE-306: Missing Authentication for Critical Function
File: packages/powerline/src/index.ts

Database specific

{
    "github_reviewed_at": "2026-03-25T17:30:46Z",
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-306"
    ],
    "severity": "MODERATE",
    "github_reviewed": true
}

References

Affected packages

npm / @grackle-ai/powerline

Package

Name: @grackle-ai/powerline; View open source insights on deps.dev
Purl: pkg:npm/%40grackle-ai/powerline

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.70.1

Database specific

last_known_affected_version_range

"<= 0.70.0"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-xq7h-vwjp-5vrh/GHSA-xq7h-vwjp-5vrh.json"