CVE-2026-75034

Summary

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 Software

VendorProductVersion RangeStatus
SUSERancher0 < 2.15.1affected

Weaknesses

  • CWE-294: CWE-294 Authentication bypass by capture-replay

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References