CVE-2026-25705
Rancher Extensions have arbitrary file access via path traversal
CVSS Score
8.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-35 |
| Vendor | suse |
| Product | rancher |
| Published | May 13, 2026 |
| Last Updated | May 13, 2026 |
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CVSS v3 Breakdown
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
Affected Versions
SUSE / rancher
2.14.0 < 2.14.1 2.13.0 < 2.13.5 2.12.0 < 2.12.9 2.10.11 < 2.11.13
References
Credits
https://github.com/KoreaSecurity