CVE-2026-19753

HIGHPre-NVD 7.37.3—
EchelonGraph scoreHIGH confidence

Score 7.3 from GitHub Security Advisory published 2026-08-14. a secondary CVSS source baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Elevated riskExposed: 0

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

A vulnerability was detected in Model Context Protocol mcp-rdf-explorer 1.0.0. Affected is the function explore_url of the file src/mcp-rdf-explorer/server.py of the component MCP Server. Performing a manipulation of the argument url results in server-side request forgery. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.3
EG Score
7.3(high)
EG Risk
64(Attend)
EG Risk 64/100SSVC: Attend

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
Severity73% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

mcp-rdf-explorer explore_url Unvalidated URL Fetch SSRF · Issue #3 · emekaokoye/mcp-rdf-explorer · GitHub

https://github.com/emekaokoye/mcp-rdf-explorer/issues/3

Vendor Advisories for CVE-2026-19753(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 37× in last 7d / 41× 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 07:27 UTCEG score recompute
  2. 2026-08-21 07:27 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 20:20 UTCGHSA enrichment
  5. 2026-08-20 09:12 UTCGHSA enrichment
  6. 2026-08-19 22:04 UTCEG score recompute
  7. 2026-08-19 22:03 UTCGHSA enrichment
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-19 10:56 UTCGHSA enrichment
  10. 2026-08-18 23:49 UTCEG score recompute
  11. 2026-08-18 23:49 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 12:41 UTCGHSA enrichment
  14. 2026-08-18 01:30 UTCGHSA enrichment
  15. 2026-08-17 14:23 UTCEG score recompute
  16. 2026-08-17 14:23 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 03:16 UTCGHSA enrichment
  19. 2026-08-16 16:08 UTCEG score recompute
  20. 2026-08-16 16:08 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 05:01 UTCEG score recompute
  23. 2026-08-16 05:01 UTCGHSA enrichment
  24. 2026-08-16 02:14 UTCEPSS rescore
  25. 2026-08-15 17:54 UTCGHSA enrichment
Show 16 more
  1. 2026-08-15 06:47 UTCEG score recompute
  2. 2026-08-15 06:47 UTCGHSA enrichment
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 19:16 UTCGHSA enrichment
  5. 2026-08-14 16:31 UTCEG score recompute
  6. 2026-08-14 16:31 UTCGHSA enrichment
  7. 2026-08-14 16:31 UTCNVD updateCVSS v4 → 5.5
  8. 2026-08-14 16:04 UTCEG score recompute
  9. 2026-08-14 16:04 UTCGHSA enrichment
  10. 2026-08-14 16:03 UTCMITRE cvelistV5CVSS v4 → 6.9
  11. 2026-08-14 10:53 UTCEG score recompute
  12. 2026-08-14 10:53 UTCGHSA enrichment
  13. 2026-08-13 23:46 UTCEG score recompute
  14. 2026-08-13 23:45 UTCNVD updateCVSS v4 → 5.5
  15. 2026-08-13 22:29 UTCEG score recompute
  16. 2026-08-13 22:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19753?
CVE-2026-19753 is a high vulnerability published on August 13, 2026. A vulnerability was detected in Model Context Protocol mcp-rdf-explorer 1.0.0. Affected is the function explore_url of the file src/mcp-rdf-explorer/server.py of the component MCP Server. Performing a manipulation of the argument url results in server-side request forgery. The attack may be…
When was CVE-2026-19753 disclosed?
CVE-2026-19753 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19753 actively exploited?
CVE-2026-19753 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 79.6% of all scored CVEs.
What is the CVSS score of CVE-2026-19753?
CVE-2026-19753 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-19753?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19753, 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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