Quick answers
- Is CVE-2026-123553 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-123553 being exploited in the wild.
- How severe is CVE-2026-123553?
- Medium severity, with a CVSS score of 6.5, published 8 November 2026.
- Which products and versions are affected?
- Open Identity Platform OpenAM before 16.1.4.
- Is there a fix for CVE-2026-123553?
- Yes: fixed in OpenAM 16.1.4. Until then: Until 16.1.4 is deployed, remove the demo user and agent profiles (wsc, wsp, SecurityTokenService, agentAuth) from the Top Level Realm, or give each a strong custom password and ensure they are deactivated. Additionally, enable account lockout with a non-zero Login Failure Lockout Duration under Realms > Realm > Authentication > Settings, and disable Module Based Authentication under Realms > Realm > Authentication > Settings > Security if not required. Give the anonymous user a strong custom password. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-123553 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-123553?
- 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: OpenAM 16.1.4
Until 16.1.4 is deployed, remove the demo user and agent profiles (wsc, wsp, SecurityTokenService, agentAuth) from the Top Level Realm, or give each a strong custom password and ensure they are deactivated. Additionally, enable account lockout with a non-zero Login Failure Lockout Duration under Realms > Realm > Authentication > Settings, and disable Module Based Authentication under Realms > Realm > Authentication > Settings > Security if not required. Give the anonymous user a strong custom password.
Technical details
OpenAM before 16.1.4 ships multiple built-in identities (demo user, anonymous user, and WS-Security agent profiles: wsc, wsp, SecurityTokenService, agentAuth) in the Top Level Realm with identical, publicly known default passwords across all installations. An unauthenticated remote attacker can exploit this via the OpenAM login endpoints to obtain authenticated sessions; the attack is made easier by disabled account lockout and enabled module-based authentication that allow direct targeting of authentication modules. The agent identities additionally permit reading configuration of other agent profiles once authenticated.
Affected products
- Open Identity Platform OpenAM before 16.1.4
Timeline
- 2026-10-22: disclosed
- 2026-11-08: advisory