CVE-2026-71403 | BDVDB-2026-367606 Detail
SUSERancher
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.
Impact#
CAPEC-21 Exploitation of Trusted Identifiers
Weaknesses#
- CWE-639 Authorization Bypass Through User-Controlled Key
References#
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.