Security Advisory

CVE-2026-71403

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-03 14:45:37

Last updated 2026-09-04 03:55:59

Assigner suse

CVSS score 6.1

State PUBLISHED

Description

A flaw was found in Rancher Manager. The /v3/users update path did not enforce immutability of a User resource's `username` and `principalIds` fields. A user holding the `update` verb on `users.management.cattle.io` could inject a foreign identity provider principal into any account, so that the next login by the owner of that principal was bound to the victim's account and inherited its role bindings. This issue affects Rancher: before 2.15.1.

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