# CVE-2025-23389: Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login

Source: https://junglewise.ai/threats/cve-2025-23389-rancher-does-not-properly-validate-account-bindings-in-saml  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-03-03  
License: CC BY 4.0 with a link back

CVE-2025-23389 · Severity: low · CVSS 3.1 · Published 2025-03-03

Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login in github.com/rancher/rancher

Technologies: [github.com/rancher/rancher (Go)](https://junglewise.ai/threats/technologies/github-com-rancher-rancher). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2025-23389 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-23389 being exploited in the wild.

**How severe is CVE-2025-23389?** Low severity, with a CVSS score of 3.1, published 3 March 2025.

**Which products and versions are affected?** github.com/rancher/rancher (Go) SEMVER:introduced=0, SEMVER:introduced=2.8.0,fixed=2.8.13.

**Is there a fix for CVE-2025-23389?** Yes. github.com/rancher/rancher (Go): upgrade to 2.8.13 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2025-23389?** Check whether you run github.com/rancher/rancher (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/rancher/rancher (Go): upgrade to 2.8.13 or later

  ```sh
  go get github.com/rancher/rancher@v2.8.13
  ```


## Affected products

- github.com/rancher/rancher (Go) SEMVER:introduced=0, SEMVER:introduced=2.8.0,fixed=2.8.13

## Identifiers

- CVE-2025-23389
- GHSA-mq23-vvg7-xfm4
- GO-2025-3490

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