Upstream information
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.
SUSE information
Overall state of this security issue: Revisit
This issue is currently rated as having important severity.
| CVSS detail | CNA (SUSE) |
|---|---|
| Base Score | 7.4 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Attack Vector | Network |
| Attack Complexity | High |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | High |
| Integrity Impact | High |
| Availability Impact | None |
| CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- GHSA-j637-8xgr-436x, published Fri Aug 28 05:02:46 CEST 2026
SUSE Timeline for this CVE
CVE page created: Fri Aug 28 11:43:11 2026CVE page last modified: Thu Sep 3 21:50:55 2026