CVE-2026-54549 Meta Ads MCP: Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch
Attackers can exploit SSRF in Meta Ads MCP to access internal services or cloud metadata via unrestricted image URL fetching.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-54549?
CVE-2026-54549 is a high-severity server-side request forgery vulnerability in pipeboard-co meta-ads-mcp, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-54549?
3 open source packages ship an affected version, including meta-ads-mcp.
| Package | Affected | Fixed in |
|---|---|---|
meta-ads-mcp PyPI | All versions | 1.0.115 |
meta-ads-mcp PyPI | All versions | 1.0.115 |
meta-ads-mcp PyPI | All versions | 1.0.115 |
How do I fix CVE-2026-54549?
Upgrade meta-ads-mcp to 1.0.115 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-54549 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54549 exists.
Sources
Also known as GHSA-45gf-fjxp-cjpq, PYSEC-2026-3485.