Protection Mechanism Failure Affecting @grackle-ai/server package, versions <0.70.5


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

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  • Snyk IDSNYK-JS-GRACKLEAISERVER-15840038
  • published30 Mar 2026
  • disclosed25 Mar 2026
  • creditUnknown

Introduced: 25 Mar 2026

New CVE NOT AVAILABLE CWE-693  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade @grackle-ai/server to version 0.70.5 or higher.

Overview

@grackle-ai/server is a Grackle server orchestrator — spawns and wires core (gRPC), web-server (HTTP), MCP, and PowerLine

Affected versions of this package are vulnerable to Protection Mechanism Failure due to missing security headers in HTTP responses. An attacker can compromise the security of client browsers by exploiting the absence of Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options headers, potentially enabling cross-site scripting, clickjacking, or MIME-sniffing attacks.

Workaround

This vulnerability can be mitigated by using a reverse proxy (such as nginx or Caddy) in front of the server to inject the necessary security headers.

CVSS Base Scores

version 4.0
version 3.1