CVE-2026-44946CWE-294

SAML Authentication Replay in Rancher

Critical · published June 30, 2026

CVSS v4.0
9.5
EPSS
0%
Percentile
31.6
In the wild
Unconfirmed
What it is

A SAML authentication replay vulnerability in Rancher's Assertion

Consumer Service (ACS) handler did not enforce

one-time use of SAML assertion, potentially allowing person in the middle attacks against Rancher, affecting Rancher 2.14.0 before 2.14.3,

The record
Technical detail
CVSS v4.0
9.5 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H
EPSS
0.00387 · 31.6th percentile
Weakness
CWE-294 · Authentication Bypass by Capture-replay
Published
2026-06-30T12:14Z
EPSS history
Timeline
  • 30 JUN 12:14Z
    SAML Authentication Replay in Rancher
    cvelistv5