CVE-2022-31247Public exploitNetwork attack vector

Cross-cluster owner escalation via mismatched role bindings

Published Sep 7, 2022 · Updated Sep 16, 2024

Improper authorization in Rancher 2.5.0 through 2.5.15 and 2.6.0 through 2.6.6 allows remote authenticated users to gain project-owner access. The authorization path accepts a binding whose clusterName or projectName conflicts with its metadata namespace, applying the requested owner role outside the caller's authorized project boundary. Exploitation requires permission to edit CRTB or PRTB objects and kubectl access to the local cluster; cross-cluster cluster-owner escalation also requires existing cluster-owner rights on one downstream cluster.

CVSS severity9.1
Critical
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Rancher 2.5.0 through 2.5.15 and 2.6.0 through 2.6.6 allows remote authenticated users to gain project-owner access. The authorization path accepts a binding whose clusterName or projectName conflicts with its metadata namespace, applying the requested owner role outside the caller's authorized project boundary. Exploitation requires permission to edit CRTB or PRTB objects and kubectl access to the local cluster; cross-cluster cluster-owner escalation also requires existing cluster-owner rights on one downstream cluster.

The record

CVE
CVE-2022-31247
Published
Sep 7, 2022
Updated
Sep 16, 2024
Vendor
NeuVector
Product
Rancher
Classifications
CWE-285, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=Rancher <2.5.16
  2. Affected versionversion=Rancher <2.6.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NeuVector · Rancherversion=Rancher <2.5.16; version=Rancher <2.6.7

Published CVSS scores

9.1SUSECVSS: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 exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
T1098Account Manipulation

Public exploit references

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

Technologies

Your stack

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Your stack

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