CVE-2026-19956

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-08-16. A secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.3Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
33
EG Risk 33/100CISA SSVC

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
Severity63% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.4%
EPSS %ILE
29th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 16, 2026

Last Modified

August 20, 2026

Advisory Details (4)

Auto-updated Aug 16, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_pr, github_commit.
generic

GitHub - gomarble-ai/facebook-ads-mcp-server · GitHub

https://github.com/gomarble-ai/facebook-ads-mcp-server/
github_commit

commit 4e53875aa22e (gomarble-ai/facebook-ads-mcp-server)

Fix landed in gomarble-ai/facebook-ads-mcp-server commit 4e53875aa22e — awaiting tagged release

https://github.com/gomarble-ai/facebook-ads-mcp-server/commit/4e53875aa22e8991c2fa4a7660d86e1caba66659
github_pr

fix: prevent SSRF in pagination fetcher

Fix merged in gomarble-ai/facebook-ads-mcp-server PR #32 on 2026-07-20 — awaiting tagged release

https://github.com/gomarble-ai/facebook-ads-mcp-server/pull/32
generic🟡 PoC Available

SSRF in fetch_pagination_url — facebook-ads-mcp-server · Issue #29 · gomarble-ai/facebook-ads-mcp-server · GitHub

https://github.com/gomarble-ai/facebook-ads-mcp-server/issues/29

Vendor Advisories for CVE-2026-19956(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 67× 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.

Showing the most recent 100 of 119 total refreshes for this CVE.

  1. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 21:52 UTCGHSA enrichment
  3. 2026-10-03 19:25 UTCEG score recompute
  4. 2026-10-03 19:25 UTCGHSA enrichment
  5. 2026-10-02 15:48 UTCEG score recompute
  6. 2026-10-02 15:48 UTCGHSA enrichment
  7. 2026-10-01 19:49 UTCEPSS rescore
  8. 2026-10-01 13:24 UTCEG score recompute
  9. 2026-10-01 13:24 UTCGHSA enrichment
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-30 11:59 UTCEG score recompute
  12. 2026-09-30 11:59 UTCGHSA enrichment
  13. 2026-09-29 15:20 UTCEPSS rescore
  14. 2026-09-28 13:51 UTCEPSS rescore
  15. 2026-09-28 09:45 UTCEG score recompute
  16. 2026-09-28 09:45 UTCGHSA enrichment
  17. 2026-09-27 13:47 UTCEPSS rescore
  18. 2026-09-27 08:20 UTCEG score recompute
  19. 2026-09-27 08:20 UTCGHSA enrichment
  20. 2026-09-26 15:58 UTCEPSS rescore
  21. 2026-09-25 08:04 UTCEG score recompute
  22. 2026-09-25 08:04 UTCGHSA enrichment
  23. 2026-09-24 06:38 UTCEG score recompute
  24. 2026-09-24 06:38 UTCGHSA enrichment
  25. 2026-09-23 05:13 UTCEG score recompute
Show 75 more
  1. 2026-09-23 05:13 UTCGHSA enrichment
  2. 2026-09-22 03:48 UTCEG score recompute
  3. 2026-09-22 03:48 UTCGHSA enrichment
  4. 2026-09-21 02:19 UTCEG score recompute
  5. 2026-09-21 02:19 UTCGHSA enrichment
  6. 2026-09-20 00:53 UTCEG score recompute
  7. 2026-09-20 00:53 UTCGHSA enrichment
  8. 2026-09-18 23:28 UTCEG score recompute
  9. 2026-09-18 23:28 UTCGHSA enrichment
  10. 2026-09-18 19:27 UTCEPSS rescore
  11. 2026-09-17 22:02 UTCEG score recompute
  12. 2026-09-17 22:02 UTCGHSA enrichment
  13. 2026-09-16 16:05 UTCEG score recompute
  14. 2026-09-16 16:05 UTCGHSA enrichment
  15. 2026-09-16 14:07 UTCEPSS rescore
  16. 2026-09-16 05:14 UTCEPSS rescore
  17. 2026-09-15 12:58 UTCEG score recompute
  18. 2026-09-15 12:58 UTCGHSA enrichment
  19. 2026-09-14 10:55 UTCEG score recompute
  20. 2026-09-14 10:55 UTCGHSA enrichment
  21. 2026-09-13 16:46 UTCEPSS rescore
  22. 2026-09-13 09:30 UTCEG score recompute
  23. 2026-09-13 09:30 UTCGHSA enrichment
  24. 2026-09-12 15:00 UTCEPSS rescore
  25. 2026-09-12 08:04 UTCEG score recompute
  26. 2026-09-12 08:04 UTCGHSA enrichment
  27. 2026-09-11 14:52 UTCEPSS rescore
  28. 2026-09-11 06:38 UTCEG score recompute
  29. 2026-09-11 06:38 UTCGHSA enrichment
  30. 2026-09-10 09:34 UTCEPSS rescore
  31. 2026-09-10 05:12 UTCGHSA enrichment
  32. 2026-09-09 03:46 UTCEG score recompute
  33. 2026-09-09 03:46 UTCGHSA enrichment
  34. 2026-09-08 22:00 UTCEPSS rescore
  35. 2026-09-07 20:05 UTCEG score recompute
  36. 2026-09-07 20:05 UTCGHSA enrichment
  37. 2026-09-07 16:01 UTCEPSS rescore
  38. 2026-09-06 18:39 UTCEG score recompute
  39. 2026-09-06 18:39 UTCGHSA enrichment
  40. 2026-09-06 13:47 UTCEPSS rescore
  41. 2026-09-05 17:14 UTCEG score recompute
  42. 2026-09-05 17:13 UTCGHSA enrichment
  43. 2026-09-04 15:40 UTCEG score recompute
  44. 2026-09-04 15:40 UTCGHSA enrichment
  45. 2026-09-04 05:06 UTCEPSS rescore
  46. 2026-09-03 14:00 UTCEG score recompute
  47. 2026-09-03 14:00 UTCGHSA enrichment
  48. 2026-09-02 14:11 UTCEPSS rescore
  49. 2026-09-02 12:33 UTCEG score recompute
  50. 2026-09-02 12:33 UTCGHSA enrichment
  51. 2026-09-01 13:53 UTCEPSS rescore
  52. 2026-09-01 11:06 UTCGHSA enrichment
  53. 2026-08-31 09:35 UTCEG score recompute
  54. 2026-08-31 09:34 UTCGHSA enrichment
  55. 2026-08-30 19:17 UTCEPSS rescore
  56. 2026-08-30 07:11 UTCEG score recompute
  57. 2026-08-30 07:11 UTCGHSA enrichment
  58. 2026-08-30 01:22 UTCEPSS rescore
  59. 2026-08-29 05:45 UTCEG score recompute
  60. 2026-08-29 05:45 UTCGHSA enrichment
  61. 2026-08-28 21:41 UTCEPSS rescore
  62. 2026-08-27 22:59 UTCEG score recompute
  63. 2026-08-27 22:59 UTCGHSA enrichment
  64. 2026-08-27 14:25 UTCEPSS rescore
  65. 2026-08-26 21:33 UTCEG score recompute
  66. 2026-08-26 21:33 UTCGHSA enrichment
  67. 2026-08-26 14:46 UTCEPSS rescore
  68. 2026-08-25 20:08 UTCEG score recompute
  69. 2026-08-25 20:08 UTCGHSA enrichment
  70. 2026-08-25 13:48 UTCEPSS rescore
  71. 2026-08-24 18:41 UTCEG score recompute
  72. 2026-08-24 18:41 UTCGHSA enrichment
  73. 2026-08-23 17:16 UTCEG score recompute
  74. 2026-08-23 17:16 UTCGHSA enrichment
  75. 2026-08-23 00:19 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-19956?
CVE-2026-19956 is a medium vulnerability published on August 16, 2026. A vulnerability has been found in gomarble-ai facebook-ads-mcp-server 0.1.0. The impacted element is the function fetchpaginationurl 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…
When was CVE-2026-19956 disclosed?
CVE-2026-19956 was first published on August 16, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19956 actively exploited?
CVE-2026-19956 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (29th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19956?
CVE-2026-19956 has a CVSS base score of 6.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19956?
An upstream fix for CVE-2026-19956 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-19956 are linked in the Vendor Advisories panel on this page.

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