CVE-2026-41050Network attack vector

Cross-namespace secret disclosure via Helm impersonation bypass

Published May 13, 2026 · Updated May 13, 2026

Incorrect authorization in SUSE Rancher Fleet allows remote authenticated users to read secrets across downstream cluster namespaces. The Helm lookup path and fleet.yaml helm.valuesFrom references use the fleet-agent cluster-admin client instead of the impersonated ServiceAccount client. Git push access to a Fleet-monitored repository in a multi-tenant deployment is required, and each targeted downstream cluster can expose secrets beyond the tenant's RBAC scope.

CVSS severity9.9
Critical
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in SUSE Rancher Fleet allows remote authenticated users to read secrets across downstream cluster namespaces. The Helm lookup path and fleet.yaml helm.valuesFrom references use the fleet-agent cluster-admin client instead of the impersonated ServiceAccount client. Git push access to a Fleet-monitored repository in a multi-tenant deployment is required, and each targeted downstream cluster can expose secrets beyond the tenant's RBAC scope.

The record

CVE
CVE-2026-41050
Published
May 13, 2026
Updated
May 13, 2026
Vendor
NeuVector
Product
Rancher
Classifications
CWE-863, T1552.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record 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=0.11.0 <0.11.13
  2. Affected versionversion=0.12.0 <0.12.14
  3. Affected versionversion=0.13.0 <0.13.10
  4. Affected versionversion=0.14.0 <0.14.5
  5. Affected versionversion=0.15.0 <0.15.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NeuVector · Rancherversion=0.11.0 <0.11.13; version=0.12.0 <0.12.14; version=0.13.0 <0.13.10; version=0.14.0 <0.14.5; version=0.15.0 <0.15.1

Published CVSS scores

9.9SUSECVSS:3.1/AV:N/AC:L/PR:L/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
T1552.007Unsecured Credentials: Container API

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

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Your stack

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