Authorization bypass on the local cluster shell endpoint allows an unauthorized Rancher user to obtain a shell pod on the management cluster

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-104623
StatePUBLISHED
Assignersuse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-30 17:17:12 UTC
Updated2026-10-30 19:17:55 UTC
DescriptionA security vulnerability exists in the authorization handling for the local (management) cluster shell feature of SUSE Rancher Manager 2.15.0 up to 2.15.3, 2.14.0 up to 2.14.7, 2.13.0 up to 2.13.11, 2.12.0 up to 2.12.15, 2.11.0 up to 2.11.19 and possible older versions. The authorization check that was introduced to protect this feature was not applied to every API route that can reach it, so an alternative request form reached the shell handler without the access check being evaluated. This could allow any authenticated users to run a pod on the management cluster.

Risk And Classification

Primary CVSS: v3.1 6.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS: 0.002720000 probability, percentile 0.195810000 (date 2026-11-02)

Problem Types: CWE-290 | CWE-290 CWE-290 Authentication bypass by spoofing

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1CNACVSS6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SUSE Rancher affected 2.15.0 2.15.3 semver Not specified
CNA SUSE Rancher affected 2.14.0 2.14.7 semver Not specified
CNA SUSE Rancher affected 2.13.0 2.13.11 semver Not specified
CNA SUSE Rancher affected 2.12.0 2.12.15 semver Not specified
CNA SUSE Rancher affected 2.11.0 2.11.19 semver Not specified

References

ReferenceSourceLinkTags
github.com/rancher/rancher/security/advisories/GHSA-8x6f-2v58-x6p7 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: [email protected] (en)

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