CVE-2026-41053Network attack vector

Privilege escalation via organization-wide cached team expansion

Published Jun 30, 2026 · Updated Jun 30, 2026

Authorization bypass in SUSE Rancher 2.13.0 through 2.13.5 and 2.14.0 through 2.14.1 allows remote authenticated users to inherit team permissions. During GitHub App login, team membership evaluation iterates over every organization team instead of the per-user membership cache, granting group principals for teams the user never joined. Exploitation requires the provider to be enabled, membership in one organization team, and another team mapped to a Rancher allowlist or RBAC role, allowing unauthorized cluster, project, or global access.

CVSS severity8.8
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in SUSE Rancher 2.13.0 through 2.13.5 and 2.14.0 through 2.14.1 allows remote authenticated users to inherit team permissions. During GitHub App login, team membership evaluation iterates over every organization team instead of the per-user membership cache, granting group principals for teams the user never joined. Exploitation requires the provider to be enabled, membership in one organization team, and another team mapped to a Rancher allowlist or RBAC role, allowing unauthorized cluster, project, or global access.

The record

CVE
CVE-2026-41053
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
NeuVector
Product
Rancher
Classifications
CWE-303, CAPEC-233, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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=2.13.0 <2.13.6
  2. Affected versionversion=2.14.0 <2.14.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NeuVector · Rancherversion=2.13.0 <2.13.6; version=2.14.0 <2.14.2

Published CVSS scores

8.8SUSECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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-303Incorrect Implementation of Authentication Algorithm
CAPEC-233Privilege Escalation
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

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Your stack

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