High severity · published Jun 30, 2026
CVE-2026-44946
SAML Authentication Replay in Rancher
7.4
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Rancher · SUSE
2.14.0 before 2.14.3; 2.13.0 before 2.13.7; 2.12.0 before 2.12.11; 2.11.0 before 2.11.15 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44946
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44946
Vendor Advisory
https://github.com/rancher/rancher/security/advisories/GHSA-c5jm-xcmq-9j95
More from Rancher
9.9
CVE-2026-44935
Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer
9.9
CVE-2026-41050
Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering
9.9
CVE-2023-22651
Improper Privilege Management vulnerability in SUSE Rancher allows Privilege Escalation
9.9
CVE-2021-36783
A Insufficiently Protected Credentials vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners and Project Members to read credentials,…
9.9
CVE-2021-36782
A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners, Project Members and User Base to…