CVE-2026-19040

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-06. 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 weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

A flaw has been found in MissionSquad mcp-api up to 1.11.9. The affected element is an unknown function of the file src/services/dcrClients.ts. Executing a manipulation can lead to server-side request forgery. The attack may be performed from remote. Upgrading to version 1.11.10 is sufficient to fix this issue. This patch is called f068ab4ad6f0907ac7001b995588c2673f11a755. You should upgrade the affected component.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 12, 2026

Advisory Details (5)

Auto-updated Aug 6, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_release Patch Available

Release v1.11.10

Patch available: MissionSquad/mcp-api v1.11.10

https://github.com/MissionSquad/mcp-api/releases/tag/v1.11.10
github_pr Patch Available

SSRF via DCR Registration Endpoint in MissionSquad/mcp-api

Patch available: MissionSquad/mcp-api v1.11.10 (PR #45 merged 2026-06-09)

https://github.com/MissionSquad/mcp-api/pull/45
generic

SSRF via DCR Registration Endpoint in MissionSquad/mcp-api · Issue #42 · MissionSquad/mcp-api · GitHub

https://github.com/MissionSquad/mcp-api/issues/42
github_commit Patch Available

commit f068ab4ad6f0 (MissionSquad/mcp-api)

Patch available: MissionSquad/mcp-api v1.11.10 (contains commit f068ab4ad6f0)

https://github.com/MissionSquad/mcp-api/commit/f068ab4ad6f0907ac7001b995588c2673f11a755
generic

GitHub - MissionSquad/mcp-api: MCP Proxy Server. Streaming. Node/Python. OAuth w/ DCR. · GitHub

https://github.com/MissionSquad/mcp-api/

Vendor Advisories for CVE-2026-19040(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 23× in last 7d / 52× 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. 2026-08-21 02:16 UTCEG score recompute
  2. 2026-08-21 02:16 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 04:23 UTCEG score recompute
  5. 2026-08-20 04:23 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 06:29 UTCEG score recompute
  8. 2026-08-19 06:29 UTCGHSA enrichment
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-18 08:36 UTCEG score recompute
  11. 2026-08-18 08:36 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 10:32 UTCEG score recompute
  14. 2026-08-17 10:32 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 12:39 UTCEG score recompute
  17. 2026-08-16 12:39 UTCGHSA enrichment
  18. 2026-08-16 02:14 UTCEPSS rescore
  19. 2026-08-15 14:46 UTCEG score recompute
  20. 2026-08-15 14:46 UTCGHSA enrichment
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 16:52 UTCEG score recompute
  23. 2026-08-14 16:52 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 18:59 UTCGHSA enrichment
Show 27 more
  1. 2026-08-12 21:06 UTCEG score recompute
  2. 2026-08-12 21:06 UTCGHSA enrichment
  3. 2026-08-12 13:50 UTCEPSS rescore
  4. 2026-08-12 03:53 UTCEG score recompute
  5. 2026-08-12 03:53 UTCGHSA enrichment
  6. 2026-08-11 13:42 UTCEPSS rescore
  7. 2026-08-11 05:59 UTCEG score recompute
  8. 2026-08-11 05:59 UTCGHSA enrichment
  9. 2026-08-11 00:00 UTCEPSS rescore
  10. 2026-08-10 08:06 UTCEG score recompute
  11. 2026-08-10 08:06 UTCGHSA enrichment
  12. 2026-08-09 13:46 UTCEPSS rescore
  13. 2026-08-09 10:13 UTCEG score recompute
  14. 2026-08-09 10:13 UTCGHSA enrichment
  15. 2026-08-08 16:37 UTCEPSS rescore
  16. 2026-08-08 12:20 UTCEG score recompute
  17. 2026-08-08 12:20 UTCGHSA enrichment
  18. 2026-08-07 14:27 UTCGHSA enrichment
  19. 2026-08-06 16:33 UTCEG score recompute
  20. 2026-08-06 16:33 UTCGHSA enrichment
  21. 2026-08-06 16:30 UTCNVD updateCVSS v4 → 2.1
  22. 2026-08-06 15:32 UTCEG score recompute
  23. 2026-08-06 15:31 UTCMITRE cvelistV5CVSS v4 → 5.3
  24. 2026-08-06 14:28 UTCEG score recompute
  25. 2026-08-06 14:27 UTCNVD updateCVSS v4 → 2.1
  26. 2026-08-06 13:53 UTCEG score recompute
  27. 2026-08-06 13:52 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19040?
CVE-2026-19040 is a medium vulnerability published on August 6, 2026. A flaw has been found in MissionSquad mcp-api up to 1.11.9. The affected element is an unknown function of the file src/services/dcrClients.ts. Executing a manipulation can lead to server-side request forgery. The attack may be performed from remote. Upgrading to version 1.11.10 is sufficient to…
When was CVE-2026-19040 disclosed?
CVE-2026-19040 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19040 actively exploited?
CVE-2026-19040 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 65.7% of all scored CVEs.
What is the CVSS score of CVE-2026-19040?
CVE-2026-19040 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-19040?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19040, 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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