# CVE-2026-19956 — gomarble-ai facebook-ads-mcp-server

> As of 2026-08-17, CVE-2026-19956 is a MEDIUM-severity vulnerability in gomarble-ai facebook-ads-mcp-server, CVSS v3.1 6.3, EPSS 0.2% (12.0th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-19956 as of 2026-08-17; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-17

## What is CVE-2026-19956?

A vulnerability has been found in gomarble-ai facebook-ads-mcp-server 0.1.0. The impacted element is the function fetch_pagination_url of the file server.py. Such manipulation leads to server-side request forgery. The attack can be launched remotely. The name of the patch is 4e53875aa22e8991c2fa4a7660d86e1caba66659. Applying a patch is advised to resolve this issue.

The record classifies CVE-2026-19956 under weakness class [CWE-918](https://intel.threadlinqs.com/cwe/CWE-918). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 50 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C`)
- **CVSS v4.0 base score:** 5.3 (`CVSS: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`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 12.0% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-16, last modified 2026-08-17

## Is CVE-2026-19956 being exploited?

It currently carries a trending score of 33 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **gomarble-ai**: facebook-ads-mcp-server

## How to fix CVE-2026-19956

No vendor patch reference has been recorded for CVE-2026-19956 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-19956

No threat campaign in the Threadlinqs corpus currently references CVE-2026-19956, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-08-17.

**Vendor advisory and patch**

- [github.com — issue tracking](https://github.com/gomarble-ai/facebook-ads-mcp-server/pull/32)
- [github.com — patch](https://github.com/gomarble-ai/facebook-ads-mcp-server/commit/4e53875aa22e8991c2fa4a7660d86e1caba66659)

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/391113)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/391113/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-19956)
- [vuldb.com — third party advisory (872772)](https://vuldb.com/submit/872772)

**Issue tracking and product pages**

- [github.com — issue tracking](https://github.com/gomarble-ai/facebook-ads-mcp-server/issues/29)
- [github.com — product](https://github.com/gomarble-ai/facebook-ads-mcp-server/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-19956
Full detection coverage and IOCs for threats exploiting CVE-2026-19956 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp