CVE-2026-75034

HighCVSS 7.4/10Last modified Sep 18, 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.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-294

Affected software

No affected versions have been published.

Timeline

Published: Sep 3, 2026
Last modified: Sep 18, 2026
NVD status: Analyzed

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