CVE-2026-54549: Pipeboard-Co Meta-Ads-Mcp

High severity, CVSS 8.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, the upload_ad_image tool in meta_ads_mcp/core/ads.py passes an attacker-controlled image_url to try_multiple_download_methods() in meta_ads_mcp/core/utils.py, where httpx.AsyncClient uses follow_redirects=True and performs HTTP requests without validating the scheme, host, or resolved IP address. In a streamable-http deployment, a network caller can use any non-empty authorization value because Meta credential validation occurs after the image download, then direct the server to loopback services, private-network addresses, cloud metadata endpoints, or redirect-chained internal targets. The resulting server-side request forgery can expose internal data, invoke state-changing internal services, or disrupt reachable services. This issue is fixed in version 1.0.115.

Affected products

• Pipeboard-Co Meta-Ads-Mcp: before 1.0.115 (fixed in 1.0.115)

Published 2026-09-15. Last modified 2026-09-30.