CVE-2026-75034
Rancher: SAML Assertion Replay
- State
- Published
- Severity
- 7.4 High
- Published
- Sep 3, 2026
- Updated
- Sep 4, 2026
- Reserved
- Aug 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | suse |
Weaknesses
- CWE-294 Authentication bypass by capture-replay
Affected Products
| Product | Versions |
|---|---|
RancherSUSE |
|
References
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