CVE-2026-54547

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 65% 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
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: 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, AuthInjectionMiddleware in meta_ads_mcp/core/http_auth_integration.py rejects HTTP MCP requests only when both auth_token and pipeboard_token are absent, while extract_token_from_headers() does not recognize X-Pipeboard-Token as a primary credential. A network caller using the streamable-http transport can therefore send any X-Pipeboard-Token value, pass the guard without establishing authentication context, and cause get_auth_token() to fall back to the server operator's META_ACCESS_TOKEN. Subsequent MCP tools execute with the operator's Meta credentials and can read or modify the operator's Meta Ads data. Deployments using the default stdio transport or without META_ACCESS_TOKEN are not affected. This issue is fixed in version 1.0.115.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
49(Track*)
EG Risk 49/100SSVC: Track*

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
Severity74% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

July 17, 2026

Last Modified

September 17, 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 95e852793b7f (pipeboard-co/meta-ads-mcp)

Patch available: pipeboard-co/meta-ads-mcp 1.0.115 (contains commit 95e852793b7f)

https://github.com/pipeboard-co/meta-ads-mcp/commit/95e852793b7ff8604a8132e85d5facd08c91a36e
github_pr Patch Available

fix(auth): require a primary access-token credential at the HTTP middleware (1.0.114)

Patch available: pipeboard-co/meta-ads-mcp 1.0.115 (PR #137 merged 2026-06-05)

https://github.com/pipeboard-co/meta-ads-mcp/pull/137
github Patch Available🟡 PoC Available

X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token · Advisory · pipeboard-co/meta-ads-mcp · GitHub

https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-2v2f-mvfg-ph56

Vendor Advisories for CVE-2026-54547(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 07:27 UTCEG score recompute
  4. 2026-09-17 19:31 UTCEPSS rescore
  5. 2026-09-17 18:15 UTCEG score recompute
  6. 2026-09-17 10:15 UTCEG score recompute
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-15 18:36 UTCEG score recompute
  9. 2026-07-30 09:29 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-2026-54547?
CVE-2026-54547 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, AuthInjectionMiddleware in metaadsmcp/core/httpauthintegration.py rejects HTTP MCP requests only when both authtoken and pipeboardtoken are absent, while extracttokenfromheaders()…
When was CVE-2026-54547 disclosed?
CVE-2026-54547 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54547 actively exploited?
CVE-2026-54547 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 65.2% of all scored CVEs.
What is the CVSS score of CVE-2026-54547?
CVE-2026-54547 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-54547?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54547, 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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