Origin Validation Error Affecting github.com/googleapis/mcp-toolbox/cmd package, versions <0.25.0


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMGOOGLEAPISMCPTOOLBOXCMD-17817203
  • published4 Jul 2026
  • disclosed13 Jun 2026
  • creditUnknown

Introduced: 13 Jun 2026

CVE-2026-11624  (opens in a new tab)
CWE-346  (opens in a new tab)

How to fix?

Upgrade github.com/googleapis/mcp-toolbox/cmd to version 0.25.0 or higher.

Overview

Affected versions of this package are vulnerable to Origin Validation Error in the handling of the Origin header on incoming connections. An attacker can bypass access restrictions by exploiting DNS rebinding techniques, potentially gaining unauthorized access to server resources.

CVSS Base Scores

version 4.0
version 3.1