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TI-2026-34279 Aliases CVE-2026-46623GHSA-gf57-4mp6-m85x

OpenAM Account Takeover via Unverified Password Change in OAuth2 Module

Priority MEDIUM 42CWE-1391Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
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 OAuth2 authentication module updates an existing local account with profile attributes that can include userPassword and inetUserStatus, rewriting the password to the username and reactivating disabled accounts. The missing OAuth.removeRestrictedAccountUpdateAttributes filtering permits these credential and status fields to reach the account update. With account creation enabled, repeated OAuth login causes the default ldapService chain to accept the username as both identifier and password, allowing an unauthenticated attacker to take over the local account without interacting with the identity provider. The rewrite can be denied for usernames shorter than the configured minimum password length. This issue is fixed in version 16.1.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00669 52nd percentileScored 2026-11-07
Fix Fixed OpenAM (OpenIdentityPlatform): 16.1.1org.openidentityplatform.openam:openam-auth-oauth2 (Maven): 16.1.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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-auth-oauth2 (Maven)before 16.1.116.1.1Patch availableGHSA-gf57-4mp6-m85x
  • OpenAM VendorOpenIdentityPlatform Affected before 16.1.1 Fixed in 16.1.1 Patch available CNA
  • org.openidentityplatform.openam:openam-auth-oauth2 (Maven) Vendor— Affected before 16.1.1 Fixed in 16.1.1 Patch available GHSA-gf57-4mp6-m85x

Remediation

  • Fix · CNA OpenAM (OpenIdentityPlatform) Fixed in 16.1.1
  • Fix · GHSA-gf57-4mp6-m85x org.openidentityplatform.openam:openam-auth-oauth2 (Maven) Fixed in 16.1.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46623
  2. 2026-10-03 Alias added: GHSA-gf57-4mp6-m85x
  3. 2026-10-28 3 new references · GHSA-gf57-4mp6-m85x

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