NIXPKGS-2026-1596
GitHub issue
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)
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.
References
Affected products
github.com/rancher/rancher
- <2.12.9
- <2.11.13
- <2.13.5
- <2.14.1
Matching in nixpkgs
Ignored packages (2)
pkgs.terraform-providers.rancher2
None
-
nixos-unstable rancher2-14.1.0
- nixpkgs-unstable rancher2-14.1.0
- nixos-unstable-small rancher2-14.1.0
-
nixos-25.11 rancher2-8.3.1
- nixos-25.11-small rancher2-8.3.1
- nixpkgs-25.11-darwin rancher2-8.3.1
pkgs.terraform-providers.rancher_rancher2
None
-
nixos-unstable rancher2-14.1.0
- nixpkgs-unstable rancher2-14.1.0
- nixos-unstable-small rancher2-14.1.0
-
nixos-25.11 rancher2-8.3.1
- nixos-25.11-small rancher2-8.3.1
- nixpkgs-25.11-darwin rancher2-8.3.1