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…

PriorityP345high7.4CVSS 3.1

AVNACHPRNUINSUCHIHAN

EPSS

0.29%

21.0th percentile

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,

Affected

4 ranges

Vendor	Product	Version range	Fixed in
suse	rancher	>= 2.11.0 < 2.11.15	2.11.15
suse	rancher	>= 2.12.0 < 2.12.11	2.12.11
suse	rancher	>= 2.13.0 < 2.13.7	2.13.7
suse	rancher	>= 2.14.0 < 2.14.3	2.14.3

CVSS provenance

nvdv3.17.4HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

nvdv4.09.5CRITICALCVSS: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:X/V:X/RE:X/U:X

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