CVE-2026-19956Public exploitNetwork attack vector

Internal JSON exposure via unrestricted pagination URL

Published Aug 16, 2026 · Updated Aug 16, 2026

SSRF in Facebook Ads MCP Server 0.1.0 allows remote authenticated users to retrieve JSON from server-reachable URLs. The fetch_pagination_url MCP tool passes its caller-supplied URL directly to requests.get(), follows redirects, and returns the parsed response without validating the scheme, host, port, credentials, or destination. This path requires influence over an integrated agent or low-privileged MCP access; it exposes JSON from internal services or cloud metadata endpoints and triggers requests to other reachable hosts.

CVSS severity5.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Facebook Ads MCP Server 0.1.0 allows remote authenticated users to retrieve JSON from server-reachable URLs. The fetch_pagination_url MCP tool passes its caller-supplied URL directly to requests.get(), follows redirects, and returns the parsed response without validating the scheme, host, port, credentials, or destination. This path requires influence over an integrated agent or low-privileged MCP access; it exposes JSON from internal services or cloud metadata endpoints and triggers requests to other reachable hosts.

The record

CVE
CVE-2026-19956
Published
Aug 16, 2026
Updated
Aug 16, 2026
Vendor
GoMarble AI
Product
Facebook Ads MCP Server
Classifications
CWE-918, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GoMarble AI · Facebook Ads MCP Serverversion=0.1.0

Published CVSS scores

5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery
T1046Network Service Discovery

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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