What’s Vulnerable › Vulnerabilities
CVE-2026-75034: Rancher: SAML Assertion Replay
- Severity: high (CVSS 7.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-03 · updated 2026-09-18
- Weakness: CWE-294
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
- SUSE Rancher: before 2.15.1 — fixed in 2.15.1
How to fix
Upgrade to a fixed version: SUSE Rancher 2.15.1. Check the vendor advisory for mitigations.
References
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