Open redirect in the Liberty ID-FF service provider single sign-on flow
Summary
| CVE | CVE-2026-121825 |
|---|---|
| State | PUBLISHED |
| Assigner | openam-jp |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-09 03:16:36 UTC |
| Updated | 2026-11-09 03:16:36 UTC |
| Description | OpenAM (OpenAM Consortium Edition) 14.0.5 and earlier contains an open redirect vulnerability (CWE-601) in the Liberty ID-FF service provider single sign-on flow. The goto parameter of the /preLogin endpoint is stored as the RelayState of the Liberty ID-FF authentication request without validation, and after the user completes single sign-on at the identity provider, the assertion consumer service redirects the browser to that value. A remote unauthenticated attacker can induce a user to access a crafted URL and, after the user authenticates, redirect the user to an arbitrary website, which may be used for phishing. Only deployments in which a Liberty ID-FF hosted service provider is configured are affected; Liberty ID-FF is not configured by default. This issue is fixed in 14.0.6, which disables the legacy Liberty ID-FF endpoints. |
Risk And Classification
Primary CVSS: v4.0 5.1 MEDIUM from 37c6977f-aa3f-41e8-829b-3e8ff4df3c14
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/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
EPSS: 0.002180000 probability, percentile 0.123830000 (date 2026-11-09)
Problem Types: CWE-601 | CWE-601 CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | 37c6977f-aa3f-41e8-829b-3e8ff4df3c14 | Secondary | 5.1 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 5.1 | MEDIUM | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| 3.1 | 37c6977f-aa3f-41e8-829b-3e8ff4df3c14 | Secondary | 6.1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| 3.1 | CNA | CVSS | 6.1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/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
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | OpenAM Consortium | OpenAM OpenAM Consortium Edition | affected 14.0.0 14.0.6 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-5c3q-hp8... | 37c6977f-aa3f-41e8-829b-3e8ff4df3c14 | github.com | |
| openam-jp.github.io/Advisories/CVE-2026-121825 | 37c6977f-aa3f-41e8-829b-3e8ff4df3c14 | openam-jp.github.io | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Arittro Sarkar (en)
Additional Advisory Data
Solutions
CNA: Upgrade to OpenAM (OpenAM Consortium Edition) 14.0.6 or later. Note that 14.0.6 disables the legacy Liberty ID-FF endpoints.
Workarounds
CNA: If Liberty ID-FF is not used, remove the Liberty ID-FF servlet mappings (including /preLogin, /IntersiteTransferService and /AssertionConsumerService/*) from WEB-INF/web.xml, or block access to these endpoints at a reverse proxy or web application firewall.