CVE-2026-19339

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-09. 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 security flaw has been discovered in aliyun alibabacloud-dataworks-mcp-server up to 1.0.43. The impacted element is the function ReadResourceRequestSchema of the file src/resources/initResources.ts. The manipulation of the argument request.params.uri results in server-side request forgery. The attack may be launched remotely. The project was informed of the problem early through an issue report but has not responded yet.

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
11%
KEV
Not listed

Published

August 9, 2026

Last Modified

August 12, 2026

Advisory Details (2)

Auto-updated Aug 9, 2026
No patch confirmed yet.
generic

GitHub - aliyun/alibabacloud-dataworks-mcp-server: A Model Context Protocol (MCP) server that provides tools for AI, allowing it to interact with the DataWorks Open API through a standardized interface. This implementation is based on the Aliyun Open API and enables AI agents to perform cloud resources operations seamlessly. · GitHub

https://github.com/aliyun/alibabacloud-dataworks-mcp-server/
generic

SSRF via ReadResource URI in aliyun/alibabacloud-dataworks-mcp-server · Issue #27 · aliyun/alibabacloud-dataworks-mcp-server · GitHub

https://github.com/aliyun/alibabacloud-dataworks-mcp-server/issues/27

Vendor Advisories for CVE-2026-19339(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 18× in last 7d / 42× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 09:48 UTCEG score recompute
  3. 2026-08-20 09:48 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 07:59 UTCEG score recompute
  6. 2026-08-19 07:59 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 06:10 UTCEG score recompute
  9. 2026-08-18 06:10 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 04:21 UTCEG score recompute
  12. 2026-08-17 04:21 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 02:31 UTCEG score recompute
  15. 2026-08-16 02:31 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-15 00:42 UTCGHSA enrichment
  19. 2026-08-13 22:53 UTCEG score recompute
  20. 2026-08-13 22:53 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-12 21:04 UTCGHSA enrichment
  23. 2026-08-12 18:08 UTCEG score recompute
  24. 2026-08-12 18:08 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
Show 17 more
  1. 2026-08-11 16:19 UTCEG score recompute
  2. 2026-08-11 16:19 UTCGHSA enrichment
  3. 2026-08-11 13:42 UTCEPSS rescore
  4. 2026-08-11 00:00 UTCEPSS rescore
  5. 2026-08-10 14:30 UTCEG score recompute
  6. 2026-08-10 14:30 UTCGHSA enrichment
  7. 2026-08-10 14:28 UTCNVD updateCVSS v4 → 2.1
  8. 2026-08-10 14:06 UTCEG score recompute
  9. 2026-08-10 14:06 UTCGHSA enrichment
  10. 2026-08-10 14:05 UTCMITRE cvelistV5CVSS v4 → 5.3
  11. 2026-08-10 09:13 UTCEG score recompute
  12. 2026-08-10 09:13 UTCGHSA enrichment
  13. 2026-08-09 13:46 UTCEPSS rescore
  14. 2026-08-09 07:24 UTCEG score recompute
  15. 2026-08-09 07:24 UTCNVD updateCVSS v4 → 2.1
  16. 2026-08-09 06:45 UTCEG score recompute
  17. 2026-08-09 06:45 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19339?
CVE-2026-19339 is a medium vulnerability published on August 9, 2026. A security flaw has been discovered in aliyun alibabacloud-dataworks-mcp-server up to 1.0.43. The impacted element is the function ReadResourceRequestSchema of the file src/resources/initResources.ts. The manipulation of the argument request.params.uri results in server-side request forgery. The…
When was CVE-2026-19339 disclosed?
CVE-2026-19339 was first published in the National Vulnerability Database on August 9, 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-2026-19339 actively exploited?
CVE-2026-19339 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 88.6% of all scored CVEs.
What is the CVSS score of CVE-2026-19339?
CVE-2026-19339 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-19339?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19339, 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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