SCA: security update for github.com/rancher/rancher (GHSA-5v3h-x4wf-5c35)

high Tenable Cloud Security Plugin ID 441450

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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. (CVE-2026-25705)

Solution

Update the github.com/rancher/rancher library and its related packages to version 2.11.13 or later.

See Also

https://github.com/advisories/GHSA-5v3h-x4wf-5c35

Plugin Details

Severity: High

ID: 441450

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 5/7/2026

Updated: 6/30/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.42

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-25705

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2026

Vulnerability Publication Date: 5/7/2026

Reference Information

CVE: CVE-2026-25705

cwe: CWE-35