CVE-2025-23389

Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login

Description

A Improper Access Control vulnerability in SUSE rancher allows a local user to impersonate other identities through SAML Authentication on first login. This issue affects rancher: from 2.8.0 before 2.8.13, from 2.9.0 before 2.9.7, from 2.10.0 before 2.10.3.

Category

8.4
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Affected: SUSE rancher
Published at:
Updated at:

References

Link Tags
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-23389
https://github.com/rancher/rancher/security/advisories/GHSA-mq23-vvg7-xfm4

Frequently Asked Questions

What is the severity of CVE-2025-23389?
CVE-2025-23389 has been scored as a high severity vulnerability.
How to fix CVE-2025-23389?
To fix CVE-2025-23389, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-23389 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-23389 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-23389?
CVE-2025-23389 affects SUSE rancher.
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