Description
A flaw was found in Rancher Manager. The SAML assertion replay protection introduced by the fix for CVE-2026-44946 recorded consumed assertion IDs in a per-process cache, so each replica only detected replays that reached the same pod. In a high-availability deployment, an attacker holding a captured assertion could replay it once against every other replica to obtain additional authenticated sessions as the victim.
This issue affects Rancher: before 2.15.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SUSE | Rancher | < 2.15.1 | 2.15.1 |
Advisories 1
- WID-SEC-2026-3073 Rancher: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 3, 2026