# CVE-2026-123547: OpenAM open redirect via SAML RelayState

Source: https://junglewise.ai/threats/cve-2026-123547-openam-before-16-1-4-contains-an-open-redirect-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-08. Updated: 2026-11-08  
License: CC BY 4.0 with a link back

CVE-2026-123547 · Severity: medium · CVSS 4.7 · Published 2026-11-08

OpenAM is an identity and access management system that handles single sign-on for enterprise applications. When configured with its default settings, OpenAM does not validate where it redirects users after authentication, allowing attackers to craft malicious sign-on links that send users to phishing sites while appearing to come from the trusted OpenAM domain. This can bypass email filters and URL security tools that trust the organization's identity provider.

Technologies: [Open Identity Platform OpenAM](https://junglewise.ai/threats/technologies/openam). Vendors: [Open Identity Platform](https://junglewise.ai/threats/vendors/open-identity-platform).

## Quick answers

**Is CVE-2026-123547 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-123547 being exploited in the wild.

**How severe is CVE-2026-123547?** Medium severity, with a CVSS score of 4.7, published 8 November 2026.

**Which products and versions are affected?** Open Identity Platform OpenAM before 16.1.4.

**Is there a fix for CVE-2026-123547?** Yes: fixed in 16.1.4. Until then: Configure the RelayState URL list on every hosted SAML v2.0 entity to limit redirects to only intended destinations. Alternatively, set the advanced server property org.openidentityplatform.openam.federation.allowAnyUrlWithoutWhitelist to true as a temporary workaround, though a proper configuration is recommended before upgrading. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-123547 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-123547?** Check whether you run Open Identity Platform OpenAM at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 16.1.4

Configure the RelayState URL list on every hosted SAML v2.0 entity to limit redirects to only intended destinations. Alternatively, set the advanced server property org.openidentityplatform.openam.federation.allowAnyUrlWithoutWhitelist to true as a temporary workaround, though a proper configuration is recommended before upgrading.

## Technical details

The vulnerability is an open redirect (CWE-601) in SAML v2.0 single sign-on RelayState handling. When relayStateUrlList is not configured (the default), OpenAM accepts arbitrary URLs without validation and redirects users to attacker-controlled destinations. The attack requires network access and user interaction (following a crafted link), but no authentication or special privileges.

## Affected products

- Open Identity Platform OpenAM before 16.1.4

## Timeline

- 2026-10-22: disclosed
- 2026-11-08: advisory

## References

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

## Related threats

- [OpenAM default credentials authentication bypass in built-in identities](https://junglewise.ai/threats/cve-2026-123553-openam-before-16-1-4-ships-built-in-identities-in-the-top-level)
- [OpenAM unauthenticated session token disclosure via WebSocket](https://junglewise.ai/threats/cve-2026-123551-openam-from-14-0-0-before-16-1-4-contains-an-information)
- [OpenAM SAML v2.0 service provider authentication bypass](https://junglewise.ai/threats/cve-2026-123550-openam-before-16-1-4-contains-an-authentication-bypass)
- [OpenAM self-registration attribute list enforcement bypass](https://junglewise.ai/threats/cve-2026-123549-openam-before-16-1-4-fails-to-enforce-the-valid-creation)
- [OpenAM open redirect and cross-site scripting in goto parameter](https://junglewise.ai/threats/cve-2026-123546-openam-before-16-1-4-contains-an-open-redirect-and-cross-site)