# CVE-2026-54549

## Summary

- **CVE ID:** CVE-2026-54549
- **Severity:** HIGH
- **CVSS Score:** 8.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L)
- **CWE:** CWE-918
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 16, 2026

## 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.

## Affected Products

- pipeboard-co — meta-ads-mcp (< 1.0.115)

## References

- [CNA](https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-45gf-fjxp-cjpq)
- [CNA](https://github.com/pipeboard-co/meta-ads-mcp/pull/138)
- [CNA](https://github.com/pipeboard-co/meta-ads-mcp/commit/7d9926336bbdac6285a988d043c4ccfe126c94c5)
- [CNA](https://github.com/pipeboard-co/meta-ads-mcp/releases/tag/1.0.115)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 13.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._