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CVE-2025-23389VulnerabilityPublished Updated

CVE-2025-23389: SUSE rancher · Improper Access Control

Affects SUSE rancherSource CVE Database V5

0

Not known to be exploited · CVSS 8.4 High · fixed in 2.10.3 : patch SUSE rancher soon.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 3.1 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.10.3, 2.9.7, 2.8.13
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Apr 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Upgrade rancher/rancher to 2.10.3, 2.9.7 or 2.8.13.

Affected software

ProductAffectedFixed in
GitHubrancher/rancherpkg:github/rancher/rancherOther threatsAffected
  • =2.8.0 <2.8.13
  • =2.9.0 <2.9.7
  • =2.10.0 <2.10.3
  • =2.8.0
  • =2.9.0
  • =2.10.0
Fixed in
  • 2.8.13
  • 2.9.7
  • 2.10.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Organizations should immediately identify and inventory affected Rancher versions in their environments. In the interim, restrict local access to Rancher servers to trusted personnel only, as exploitation requires local user privileges. Review and harden SAML authentication configurations, including validating assertion sources and enforcing strict identity verification policies. Implement multi-factor authentication (MFA) where possible to reduce the risk of impersonation. Monitor Rancher logs for unusual authentication events or identity changes. Consider isolating Rancher management interfaces from general user networks and applying network segmentation to limit exposure. Conduct regular security audits and penetration tests focusing on authentication mechanisms. Finally, educate administrators about this vulnerability and the importance of timely updates.

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.

References

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