Authentication Bypass in Meta Ads MCP Server
CVE-2026-54547

7.4HIGH

Key Information:

Vendor

Pipeboard-co

Status
Meta-ads-mcp
Vendor
CVE Published:
15 September 2026

What is CVE-2026-54547?

The Meta Ads MCP server, used for AI assists in running Meta Ads, contains a flaw in its AuthInjectionMiddleware. Prior to version 1.0.115, it inadequately verifies HTTP MCP requests, allowing an attacker to exploit the extraction of the X-Pipeboard-Token. An attacker can leverage this to bypass authentication checks and access the server operator's Meta credentials. Consequently, this grants unauthorized individuals the ability to read or modify Meta Ads data linked to legitimate accounts. Updates for this issue are included in version 1.0.115.

Affected Version(s)

meta-ads-mcp < 1.0.115

References

https://github.com/pipeboard-co/meta-ads-mcp/security/adv...
x_refsource_CONFIRM
https://github.com/pipeboard-co/meta-ads-mcp/pull/137
x_refsource_MISC
https://github.com/pipeboard-co/meta-ads-mcp/commit/95e85...
x_refsource_MISC

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.