CVE-2026-123547

MEDIUM 4.7

OpenAM before 16.1.4 Open Redirect via SAML v2.0 RelayState

CVSS Score

4.7

EPSS Score

0.0%

EPSS Percentile

0th

OpenAM before 16.1.4 contains an open redirect vulnerability that allows attackers to redirect users to external sites because RelayState is unchecked when no relayStateUrlList is configured. Attackers can craft single sign-on links with a malicious RelayState to send users from the trusted OpenAM origin to phishing sites and bypass URL filters.

CWE	CWE-601
Vendor	openidentityplatform
Product	openam
Published	Nov 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

OpenIdentityPlatform / OpenAM

0 < 16.1.4

OpenIdentityPlatform / OpenAM

0 < 16.1.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-fhqm-62hv-4phw vulncheck.com: https://www.vulncheck.com/advisories/openam-before-16.1.4-open-redirect-via-saml-2.0-relaystate

Credits

🔍 santhreal vharseko maximthomas tsujiguchitky