CVE-2025-49596

criticalpriority · track · 26OT risk · elevatedEPSS 0.445 · 99 %ileexploit · PoCEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
4 exploits · PoC
Likely / severe?
44.5% (99th) EPSS
CVSS 9.6 · critical
Is it mine?
3 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-26

The MCP inspector is a developer tool for testing and debugging MCP servers. Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.6
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.6criticalAV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:Hsecondary · ENISA EU
v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · security-advisories@github.com
v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USCWE-306USCWE-306US
04

exploits (4)

Public proof-of-concept and weaponised exploit code.

05

affected products (3)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-7f8r-222p-6f5gMCP Inspector proxy server lacks authentication between the Inspector client and proxy2025-06-13ghsa · osvUS

    Versions of MCP Inspector below 0.14.1 are vulnerable to remote code execution due to lack of authentication between the Inspector client and proxy, allowing unauthenticated requests to launch MCP commands over stdio. Users should immediately upgrade to version 0.14.1 or later to address these vulnerabilities. Credit: Rémy Marot <bughunters@tenable.com>

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduosvNVDCVE.orgMITRE
published 2025-06-13modified 2026-06-17
09

references (12)

External citations — patches, advisories, analysis.

scry

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