CVE-2026-54549

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.3
EG Score
8.3(medium)
EG Risk
68(Attend)
EG Risk 68/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity83% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 17, 2026

Last Modified

September 16, 2026

Advisory Details (4)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

1.0.115

Patch available: pipeboard-co/meta-ads-mcp 1.0.115

https://github.com/pipeboard-co/meta-ads-mcp/releases/tag/1.0.115
github_commit Patch Available

commit 7d9926336bbd (pipeboard-co/meta-ads-mcp)

Patch available: pipeboard-co/meta-ads-mcp 1.0.115 (contains commit 7d9926336bbd)

https://github.com/pipeboard-co/meta-ads-mcp/commit/7d9926336bbdac6285a988d043c4ccfe126c94c5
github_pr Patch Available

fix(security): SSRF in upload_ad_image image_url fetch (GHSA-45gf-fjxp-cjpq) — 1.0.115

Patch available: pipeboard-co/meta-ads-mcp 1.0.115 (PR #138 merged 2026-06-05)

https://github.com/pipeboard-co/meta-ads-mcp/pull/138
github Patch Available🟡 PoC Available

Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch · Advisory · pipeboard-co/meta-ads-mcp · GitHub

https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-45gf-fjxp-cjpq

Vendor Advisories for CVE-2026-54549(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
meta-ads-mcp0.1.0 ... 1.0.99 (172 versions)1.0.115—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 04:32 UTCEG score recompute
  4. 2026-09-17 19:31 UTCEPSS rescore
  5. 2026-09-16 15:32 UTCEG score recompute
  6. 2026-09-16 14:52 UTCEG score recompute
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-15 18:36 UTCEG score recompute
  9. 2026-07-30 12:18 UTCEG score recompute
  10. 2026-07-26 11:18 UTCEG score recompute
  11. 2026-07-23 03:19 UTCEG score recompute
  12. 2026-07-17 19:00 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54549?
CVE-2026-54549 is a high vulnerability published on July 17, 2026. Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, the uploadadimage tool in metaadsmcp/core/ads.py passes an attacker-controlled imageurl to trymultipledownloadmethods() in metaadsmcp/core/utils.py, where httpx.AsyncClient uses…
When was CVE-2026-54549 disclosed?
CVE-2026-54549 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54549 actively exploited?
CVE-2026-54549 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 85.9% of all scored CVEs.
What is the CVSS score of CVE-2026-54549?
CVE-2026-54549 has a CVSS v3 base score of 8.3 (NVD).
How do I remediate CVE-2026-54549?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54549, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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