CVE-2026-51994
📛 CVE Title
CVE-2026-51994
Description
mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadata URL extracted from a remote MCP server's WWW-Authenticate header
Overview
- State
- PUBLISHED
- Assigner (CNA)
- mitre
- CVSS severity
- —
- CVSS score
- —
- CVSS vector
- —
- Effective score
- no score available from CNA, NVD, or AI yet
- CWE(s)
- —
- Reserved
- 2026-06-08
- Published
- 2026-09-24 00:00 UTC
- Last updated
- 2026-09-25 18:12 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/51xxx/CVE-2026-51994.json
NVD / KEV / EPSS data refreshed 2026-09-25 04:38 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
AI-forensic CVSS estimate
Used only when a CVE has no official CVSS from its CNA or NVD. An LLM estimates the v3.1 base score from the description; a HIGH/CRITICAL estimate promotes the CVE to a Threat.
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European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-86017 - Assigner
- mitre
- Published
- Sep 24, 2026, 12:00:00 AM
- Updated
- Sep 24, 2026, 2:37:51 PM
- EUVD base score
- 0.0 / 10
- EUVD-reported EPSS
- 0.0000
- Vendors
- n/a
- Products
-
n/a (n/a)
- Aliases
-
GHSA-8rrr-xx35-4q6h
ENISA description: mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadata URL extracted from a remote MCP server's WWW-Authenticate header
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| n/a | n/a |
n/a (affected)
|
— |
Vendor references (4)
References embedded in the original CVE record by the assigning CNA.
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
Remediations (10)
-
web:app.opencve.io
mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadata URL extracted from a remote MCP server's WWW-Authenticate header
2026-09-25 15:18 UTC -
web:cvetodo.com
CVE-2026-51994 : Server-Side Request Forgery (SSRF) in mcp-remote. Full technical analysis, mitigations , and exploit status — updated in real time.
2026-09-25 15:18 UTC -
web:feedly.com
A vulnerability has been found in geelen mcp-remote up to 0.1.38 and classified as critical . Affected by this issue is some unknown functionality. Performing a manipulation results in server-side request forgery. This vulnerability is reported as CVE-2026-51994 . The attack is possible to be carried out remotely. No exploit exists.
2026-09-25 15:18 UTC -
web:support.microsoft.com
This Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5120994) includes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To ...
2026-09-25 15:18 UTC -
web:support.sap.com
SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.
2026-09-25 15:18 UTC -
web:vulners.com
CVE-2026-51994 🗓️ 23 Sep 2026 17:00:00 Reported by mitre Type cve 🔗 web.nvd.nist.gov 👁 6 Views
2026-09-25 15:18 UTC -
web:windowsforum.com
Microsoft's July 14, 2026 security updates fix CVE - 2026 -58594, a Remote Desktop Client remote code execution vulnerability that can let an unauthenticated attacker run code on a Windows machine after persuading a user to initiate a malicious RDP connection.
2026-09-25 15:18 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-09-25 15:18 UTC -
web:www.oracle.com
This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.
2026-09-25 15:18 UTC -
web:www.tenable.com
mcp-remote versions 0.1.32 through 0.1.38 are vulnerable to Server-Side Request Forgery (SSRF) via the resource_metadata URL extracted from a remote MCP server's WWW-Authenticate header
2026-09-25 15:18 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-51994.json.
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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},
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"url": "https://github.com/playb0t/mcp-remote-oauth-security#readme"
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"datePublished": "2026-09-24T00:00:00.000Z",
"dateReserved": "2026-06-08T00:00:00.000Z",
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