CVE-2026-25705
HIGH EPSS 28.7%
Published May 13, 20261mo ago · Modified Jun 17, 20261w ago
8.4 CVSS 3.1
Published May 13, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
28.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-35
References 2
- bugzilla.suse.com https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705
- github.com https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.