CVE-20XX-?
agent?

CVE-2026-90474

7.6 HIGH 0.6% exploit odds Fix listed Auth & access Device

What it is

MCPHub before 1.0.32 contains an authentication bypass vulnerability in its embedded OAuth 2.0 authorization server where client authentication is disabled by default and PKCE enforcement is optional. Attackers who obtain an authorization code through interception can redeem it for access tokens without providing a client secret or PKCE verifier, gaining access to victim accounts and their privileges.

At a glance

Exploitability
Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering.
Exploit odds
0.6% chance of exploitation in the next 30 days (EPSS).
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
0.6% · EPSS, next 30 days
Weakness
CWE-287 · Improper authentication
Record status
Deferred

Attack profile CVSS 4.0 · 7.6

Attack vector
Network
Complexity
Low
Attack requirements
Present
Privileges needed
None
User interaction
Passive
Confidentiality
High
Integrity
High
Availability
None
Raw vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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:X

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-90474.md and follow it. Check whether this project is affected by CVE-2026-90474. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record