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TI-2026-38701 Aliases CVE-2026-53660GHSA-fpmh-vx4h-xc33

OpenAM Insecure SSO Cookie Initialization

Priority LOW 35CWE-1004Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the default configuration initializes the iPlanetDirectoryPro SSO cookie with HttpOnly disabled and without a protective SameSite default, and OAuth and OpenID Connect consent flows reuse that cookie through CsrfProtection as a CSRF token. When combined with same-origin cross-site scripting and a user following an attacker-controlled link, the cookie can be read and reused to steal the SSO session and complete attacker-driven consent grants. This issue is fixed in version 16.1.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00409 35th percentileScored 2026-11-07
Fix Fixed OpenAM (OpenIdentityPlatform): 16.1.1org.openidentityplatform.openam:openam-core (Maven): 16.1.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenIdentityPlatformOpenAMbefore 16.1.116.1.1Patch availableCNA
—org.openidentityplatform.openam:openam-core (Maven)before 16.1.116.1.1Patch availableGHSA-fpmh-vx4h-xc33
  • OpenAM VendorOpenIdentityPlatform Affected before 16.1.1 Fixed in 16.1.1 Patch available CNA
  • org.openidentityplatform.openam:openam-core (Maven) Vendor— Affected before 16.1.1 Fixed in 16.1.1 Patch available GHSA-fpmh-vx4h-xc33

Remediation

  • Fix · CNA OpenAM (OpenIdentityPlatform) Fixed in 16.1.1
  • Fix · GHSA-fpmh-vx4h-xc33 org.openidentityplatform.openam:openam-core (Maven) Fixed in 16.1.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-53660
  2. 2026-10-03 Alias added: GHSA-fpmh-vx4h-xc33
  3. 2026-10-28 2 new references · GHSA-fpmh-vx4h-xc33

References

Advisory 1

Other 4

  • TI-2025-20332 OpenDJ Denial of Service (Dos) using alias loop CVSS 4.0HIGH 8.7
  • TI-2026-25836 Pre-Authentication Remote Code Execution via `jato.clientSession` Deserialization in OpenAM CVSS 4.0CRITICAL 9.3
  • TI-2026-86693 Session token disclosure in OpenAM notification WebSocket CVSS 4.0CRITICAL 10.0
  • TI-2026-86692 Authentication bypass in OpenAM SAML login accepts unsigned assertions CVSS 4.0CRITICAL 9.3
  • TI-2026-86691 Privilege escalation in OpenAM via self-registration attribute bypass CVSS 4.0CRITICAL 9.3
  • TI-2026-86685 Unbounded Java deserialization in OpenAM enables denial of service CVSS 4.0HIGH 8.7
See all 54 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences