CVE-2026-22806Network attack vector

Cross-scope resource access via access-key authorization bypass

Published Jan 29, 2026 · Updated Jan 29, 2026

Incorrect authorization in vCluster Platform before 4.3.10, 4.4.2, 4.5.4, and 4.6.0 allows remote authenticated users to cross access-key scopes. A scoped key is accepted for API requests targeting other projects or virtual clusters instead of enforcing the resource limits stored in the key scope. Exploitation requires a valid scoped access key, and access remains bounded by the permissions of the user who created that key.

CVSS severity9.1
Critical
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect authorization in vCluster Platform before 4.3.10, 4.4.2, 4.5.4, and 4.6.0 allows remote authenticated users to cross access-key scopes. A scoped key is accepted for API requests targeting other projects or virtual clusters instead of enforcing the resource limits stored in the key scope. Exploitation requires a valid scoped access key, and access remains bounded by the permissions of the user who created that key.

The record

CVE
CVE-2026-22806
Published
Jan 29, 2026
Updated
Jan 29, 2026
Vendor
vCluster Labs
Product
vCluster Platform
Classifications
CWE-863, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.3.10
  2. Affected versionversion=>= 4.4.0, < 4.4.2
  3. Affected versionversion=>= 4.5.3, < 4.5.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

vCluster Labs · vCluster Platformversion=< 4.3.10; version=>= 4.4.0, < 4.4.2; version=>= 4.5.3, < 4.5.3

Published CVSS scores

9.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo