Rancher fixes a critical vulnerability

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[TLP:CLEAR] Rancher fixes a critical vulnerability

Rancher fixes a critical vulnerability with versions 2.8.14, 2.9.8, 2.10.4 and 2.11.0 [1].

Rancher - Administrator account takeover (CVE-2025-23391)

CVSS 9.1 (Critical)

Allows an authenticated remote attacker with the Restricted Administrator role to change the password of any Administrator-type user without authorization and take over their account, even without the otherwise required Manage Users permission. If an immediate update to the fixed version is not possible, it is recommended to limit the Restricted Administrator role to trusted persons only, or to replace this role with a custom one with limited permissions [1].

The vulnerability is present in product:

*:Rancher;>=2.8.0,<2.8.14;>=2.9.0,<2.9.8;>=2.10.0,<2.10.4;

CVSS: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

More information:

CVE-2025-23391 at cve.org, NVD
CWE-269: Improper Privilege Management at cwe.mitre.org

The vulnerability was publicly disclosed 30. 3. 2025.

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[TLP:CLEAR] Rancher fixes a critical vulnerability

Rancher - Administrator account takeover (CVE-2025-23391)

CVSS 9.1 (Critical)

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