Description
A vulnerability has been identified in [Rancher's Extensions](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject code.

* Write to /var/lib/rancher/ to tamper with cluster state.

* If hostPath volumes are mounted, write to the host node filesystem.

* Use this issue to chain with other attack vectors.
Published: 2026-05-13
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-5v3h-x4wf-5c35 Rancher Extensions have arbitrary file access via path traversal
History

Wed, 13 May 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 13 May 2026 09:30:00 +0000

Type Values Removed Values Added
First Time appeared Suse
Suse rancher
Vendors & Products Suse
Suse rancher

Wed, 13 May 2026 08:15:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in [Rancher's Extensions](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to: * Overwrite Rancher binaries or configuration to inject code. * Write to /var/lib/rancher/ to tamper with cluster state. * If hostPath volumes are mounted, write to the host node filesystem. * Use this issue to chain with other attack vectors.
Title Rancher Extensions have arbitrary file access via path traversal
Weaknesses CWE-35
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: suse

Published:

Updated: 2026-05-14T03:55:59.252Z

Reserved: 2026-02-05T15:37:24.184Z

Link: CVE-2026-25705

cve-icon Vulnrichment

Updated: 2026-05-13T10:48:07.203Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-13T08:16:16.083

Modified: 2026-05-13T15:35:35.267

Link: CVE-2026-25705

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T09:30:26Z

Weaknesses