# CVE-2026-25705

## Summary

- **CVE ID:** CVE-2026-25705
- **Severity:** HIGH
- **CVSS Score:** 8.4 (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H)
- **CWE:** CWE-35
- **Published:** May 13, 2026
- **Last Modified:** May 14, 2026

## 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.

## Affected Products

- SUSE — rancher (2.14.0)
- SUSE — rancher (2.13.0)
- SUSE — rancher (2.12.0)
- SUSE — rancher (2.10.11)

## References

- [CNA](https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705)
- [CNA](https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.37%
- **EPSS Percentile:** 30.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._