Is CVE-2026-75034 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-75034?

CVE-2026-75034 has a CVSS v3 severity of HIGH (7.4).

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CVE-2026-75034

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.