GHSA-3mjm-x6gw-2x42

Source

https://github.com/advisories/GHSA-3mjm-x6gw-2x42

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3mjm-x6gw-2x42/GHSA-3mjm-x6gw-2x42.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-3mjm-x6gw-2x42

Published

2026-03-25T17:32:04Z

Modified

2026-03-25T17:46:27Z

Severity

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

Summary

@grackle-ai/server has Missing Content-Security-Policy and X-Frame-Options Headers

Details

Impact

The HTTP server does not set Content-Security-Policy, X-Frame-Options, or X-Content-Type-Options headers on any response. This reduces defense-in-depth against XSS, clickjacking, and MIME-sniffing attacks.

While the current XSS attack surface is small (React-markdown is configured safely, no dangerouslySetInnerHTML, Vite does not generate source maps), the absence of these headers means any future XSS vulnerability would have no secondary defense layer.

Affected code:

packages/server/src/index.ts — all res.writeHead() calls only set Content-Type, with no security headers

Patches

0.70.4

Fix: Add security headers to all HTML/API responses:

res.writeHead(200, {
  "Content-Type": contentType,
  "Content-Security-Policy": "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:",
  "X-Frame-Options": "DENY",
  "X-Content-Type-Options": "nosniff"
});

Workarounds

Use a reverse proxy (nginx, Caddy) in front of the Grackle server to inject security headers.

References

CWE-693: Protection Mechanism Failure
OWASP: HTTP Security Response Headers
File: packages/server/src/index.ts

Database specific

{
    "cwe_ids":  [
        "CWE-693",
        "CWE-79"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-25T17:32:04Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}

References

Affected packages

npm / @grackle-ai/server

Package

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

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.70.4

Database specific

last_known_affected_version_range

"<= 0.70.3"

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-3mjm-x6gw-2x42/GHSA-3mjm-x6gw-2x42.json"