What is CVE-2026-44946?

CVE-2026-44946 is a high-severity vulnerability in SUSE Rancher, classified under Authentication Bypass by Capture-replay. CVSS score: 7.4/10. Published 2026-06-30.

How severe is CVE-2026-44946?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in SUSE Rancher

CVE-2026-44946

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,

Published 2026-06-30 · last modified 2026-07-02.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.2th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

SUSE Rancher — versions 2.14.0, 2.13.0, 2.12.0

Weakness classification (CWE)

CWE-294 — Authentication Bypass by Capture-replay

References

github.com/rancher/rancher/security/advisories/GHSA-c5jm-xcmq-9j95 (vendor-advisory, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44946?: CVE-2026-44946 is a high-severity vulnerability in SUSE Rancher, classified under Authentication Bypass by Capture-replay. CVSS score: 7.4/10. Published 2026-06-30.
How severe is CVE-2026-44946?: High severity. CVSS v3 base score is 7.4 out of 10.