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CVE-2026-44946

SAML Authentication Replay in Rancher

HIGH
7.4
CVSS Score
Published: June 30, 2026 at 12:14 PM UTC
Updated: July 2, 2026 at 08:18 PM UTC
1 product affected across 1 vendorRancher

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Severity
HIGH7.4
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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,

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Rancher· Rancher
95%
2.11.0 ≤ v < 2.11.152.12.0 ≤ v < 2.12.112.13.0 ≤ v < 2.13.72.14.0 ≤ v < 2.14.32.11.02.12.02.13.02.14.0
Affected range stops below 2.11.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.12.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.13.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.14.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-294

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