CVE-2026-51996
📛 CVE Title
CVE-2026-51996
Description
An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function
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
- 2026-09-24 14:38 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/51xxx/CVE-2026-51996.json
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-09-24 15:17:23 UTC
- NVD last modified
- 2026-09-24 21:08:55 UTC
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.
No AI estimate yet — it runs automatically once NVD has been checked, or click the button above.
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-2026-86019 - Assigner
- mitre
- Published
- Sep 24, 2026, 12:00:00 AM
- Updated
- Sep 24, 2026, 2:38:54 PM
- EUVD base score
- 0.0 / 10
- EUVD-reported EPSS
- 0.0000
- Vendors
- n/a
- Products
-
n/a (n/a)
- Aliases
-
GHSA-mvq8-g2rm-4rhm
ENISA description: An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| n/a | n/a |
n/a (affected)
|
— |
Vendor references (3)
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.
NVD-tagged references (3)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
Remediations (10)
-
web:byteiota.com
That's not all. September's Patch Tuesday also fixed two zero-days under active exploitation: CVE - 2026 -85880, a heap buffer overflow in Windows ALPC that allows local privilege escalation to SYSTEM, and CVE - 2026 -81963, a link-following flaw in the Windows Update Stack. Rolling back removes those fixes too.
2026-09-25 10:47 UTC -
web:cvetodo.com
CVE-2026-51996 is a Remote Code Execution vulnerability. Full technical analysis, mitigations , and exploit status — updated in real time.
2026-09-25 10:47 UTC -
web:msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-09-25 10:47 UTC -
web:sec.cloudapps.cisco.com
On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...
2026-09-25 10:47 UTC -
web:support.microsoft.com
This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...
2026-09-25 10:47 UTC -
web:www.action1.com
This CISO-focused summary highlights the vulnerabilities and critical infrastructure risks that should take priority for remediation following Microsoft's September 2026 Patch Tuesday release.
2026-09-25 10:47 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's September 2026 Patch Tuesday, with security updates released for a record-breaking 966 flaws, including two actively exploited zero-day vulnerabilities.
2026-09-25 10:47 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 10:47 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 10:47 UTC -
web:www.secpod.com
Patch Analysis & Exploitation Timeline: Four CVEs , Two Confirmed Zero Days, CISA's September 8, 2026 KEV Additions An analysis of four vulnerabilities added to the CISA Known Exploited Vulnerabilities catalog on September 8, 2026 , covering public disclosure, patch availability, KEV inclusion, remediation deadlines, vulnerability classes, and patch prioritization considerations.
2026-09-25 10:47 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-51996.json.
{
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"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue in geelen mcp-remote 0.1.16 through 0.1.38 allows a remote attacker to execute arbitrary code via the src/lib/utils.ts and the getServerUrlHash function"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-24T14:38:54.206Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/geelen/mcp-remote"
},
{
"url": "https://github.com/geelen/mcp-remote/security/advisories"
},
{
"url": "https://github.com/playb0t/mcp-remote-oauth-security/blob/v1.0.1/advisories/F-04-md5-token-isolation.md"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-51996",
"datePublished": "2026-09-24T00:00:00.000Z",
"dateReserved": "2026-06-08T00:00:00.000Z",
"dateUpdated": "2026-09-24T14:38:54.206Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}