CVE-2026-44935Network attack vector

Cross-namespace secret disclosure via unvalidated valuesFrom references

Published Jul 2, 2026 · Updated Jul 2, 2026

Improper input validation in affected SUSE Rancher Fleet releases allows remote authenticated users to read cross-tenant Kubernetes secrets. The Helm Deployer resolves valuesFrom entries supplied through fleet.yaml GitRepo or HelmOp resources without enforcing namespace or service-account restrictions on referenced Secrets and ConfigMaps. Exploitation requires a tenant owner in a multi-tenant deployment with shared downstream clusters and knowledge or a guess of a target object name, namespace, and key.

CVSS severity9.9
Critical
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in affected SUSE Rancher Fleet releases allows remote authenticated users to read cross-tenant Kubernetes secrets. The Helm Deployer resolves valuesFrom entries supplied through fleet.yaml GitRepo or HelmOp resources without enforcing namespace or service-account restrictions on referenced Secrets and ConfigMaps. Exploitation requires a tenant owner in a multi-tenant deployment with shared downstream clusters and knowledge or a guess of a target object name, namespace, and key.

The record

CVE
CVE-2026-44935
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
NeuVector
Product
Rancher
Classifications
CWE-1287, T1552.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 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=0.12.0 <0.12.15
  2. Affected versionversion=0.13.0 <0.13.11
  3. Affected versionversion=0.14.0 <0.14.6
  4. Affected versionversion=0.15.0 <0.15.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NeuVector · Rancherversion=0.12.0 <0.12.15; version=0.13.0 <0.13.11; version=0.14.0 <0.14.6; version=0.15.0 <0.15.2

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1287Improper Validation of Specified Type of Input
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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