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Vulnerability record · CVE-2026-44946 · published 30 June 2026

CVE-2026-44946: Suse rancher authentication bypass by capture-replay vulnerability

Suse · Rancher

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,

9.5 CVSS 4.0 Critical EPSS 0.39% · top 69.8% CWE-294 · Authentication bypass by capture-replay
9.5CVSS 4.0 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
2 Jul 2026Last modified by NVD

Description

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,

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/rancher/rancher/security/advisories/GHSA-c5jm-xcmq-9j95 Vendor AdvisoryMitigation

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2023-22651Suse rancher improper privilege management vulnerabilityImproper Privilege Management vulnerability in SUSE Rancher allows Privilege Escalation. A failure in the update logic of Rancher's admission Webhook…EPSS 0.78%9.9CVE-2021-36782Suse rancher cleartext storage of sensitive data vulnerabilityA Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners, Proj…EPSS 4.2%9.9CVE-2021-36783Suse rancher insufficiently protected credentials vulnerabilityA Insufficiently Protected Credentials vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners and Project…EPSS 0.78%9.8CVE-2022-43755Suse rancher vulnerabilityA Insufficient Entropy vulnerability in SUSE Rancher allows attackers that gained knowledge of the cattle-token to continue abusing this even after t…EPSS 1.7%9.8CVE-2019-11202Suse rancher improper authentication vulnerabilityAn issue was discovered that affects the following versions of Rancher: v2.0.0 through v2.0.13, v2.1.0 through v2.1.8, and v2.2.0 through 2.2.1. When…EPSS 1.6%9.4CVE-2026-41052Suse rancher vulnerabilityImproper privilege handling could be used by users with Project Owner role to escalate privileges, in Rancher versions 2.14 before 2.14.2, 2.13 befor…EPSS 0.42%9.1CVE-2022-31247Suse rancher improper authorization vulnerabilityAn Improper Authorization vulnerability in SUSE Rancher, allows any user who has permissions to create/edit cluster role template bindings or project…EPSS 0.98%8.8CVE-2026-41053Suse rancher vulnerabilityIncorrect authentication caching in the team member ship expansion of the Rancher Github authentication provider caused it granting principal access …EPSS 0.52%

Source: NIST National Vulnerability Database (record CVE-2026-44946), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.