Upstream information
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.
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| CVSS detail | CNA (SUSE) | National Vulnerability Database |
|---|---|---|
| Base Score | 6.1 | 6.1 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | High | High |
| User Interaction | Required | Required |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | High |
| Integrity Impact | High | High |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- GHSA-wfvm-w99r-cjgc, published Fri Aug 28 05:02:47 CEST 2026
SUSE Timeline for this CVE
CVE page created: Fri Aug 28 11:42:08 2026CVE page last modified: Sat Sep 19 12:52:47 2026