meta-ads-mcp: Server-Side Request Forgery (SSRF) in upload_ad_image via Unrestricted image_url Fetch

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

8.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

EPSS

• CVE-2026-54549: 0.40% estimated exploitation activity in the next 30 days; percentile 34.19 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Server-Side Request Forgery (SSRF) in uploadadimage via Unrestricted imageurl Fetch Summary The uploadadimage MCP tool in meta-ads-mcp v1.0.113 passes an attacker-controlled imageurl parameter directly to an HTTP fetch helper (httpx.AsyncClient(followredirects=True).get(url)) without any scheme, host, or IP address validation. When the server is deployed with the streamable-http transport (a documented, officially supported mode), an unauthenticated remote attacker can supply an arbitrary URL—including http://127.0.0.1/, RFC 1918 addresses, or cloud metadata endpoints such as http://169.254.169.254/—and cause the server to issue an outbound HTTP request to that target. The Authorization middleware only verifies that a non-empty Bearer token is present; actual Meta API credential validation occurs after the image download, so any dummy Bearer token bypasses the pre-fetch check. This constitutes a full, unauthenticated Server-Side Request Forgery with a confirmed CVSS 3.1 Base Score of…

Published by the source

17 Jul 2026, 18:47 UTC

Last modified by the source

23 Jul 2026, 15:11 UTC

Source last checked

26 Oct 2026, 13:49 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-45gf-fjxp-cjpq

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-45gf-fjxp-cjpq

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# Patch Next advisory brief: CVE-2026-54549

Advisory: meta-ads-mcp: Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch
IDs: CVE-2026-54549, GHSA-45gf-fjxp-cjpq
Record: https://patchnext.com/advisories/cve-2026-54549 (revision 2, source checked 26 Oct 2026, 13:49 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: meta-ads-mcp 1.0.115. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI meta-ads-mcp: affected < 1.0.115; fixed in 1.0.115

## Suggested inspection (read-only)
- `python -m pip show meta-ads-mcp`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on meta-ads-mcp.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-45gf-fjxp-cjpq (OSV record GHSA-45gf-fjxp-cjpq lists affected ranges: PyPI meta-ads-mcp >=0 <1.0.115 (fixed))
- Verified: https://github.com/advisories/GHSA-45gf-fjxp-cjpq (GitHub-reviewed advisory GHSA-45gf-fjxp-cjpq lists affected ranges: PyPI meta-ads-mcp >=0 <1.0.115)

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