Nixpkgs security tracker

Login with GitHub

Details of issue NIXPKGS-2026-1596

NIXPKGS-2026-1596
published on
Permalink CVE-2026-25705
8.4 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): High (H)
  • User Interaction (UI): Required (R)
  • Scope (S): Changed (C)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): High (H)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
updated 1 week, 3 days ago by @LeSuisse Activity log
  • Created suggestion
  • @LeSuisse ignored
    2 packages
    • terraform-providers.rancher2
    • terraform-providers.rancher_rancher2
  • @LeSuisse accepted
  • @LeSuisse published on GitHub
Rancher Extensions have arbitrary file access via path traversal

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

github.com/rancher/rancher
  • <2.12.9
  • <2.11.13
  • <2.13.5
  • <2.14.1

Matching in nixpkgs

Ignored packages (2)