CVE-2026-45048 OpenIdentityPlatform CVE debrief

Who should care

Defenders responsible for OpenAM deployments using stateful session storage should assess exposure and prioritize upgrading to version 16.1.1. They should also monitor for suspicious session activity and restrict access to session management endpoints to prevent session hijacking. Additionally, security teams and vulnerability management teams should review the affected scope and severity to ensure proper mitigation and remediation.

Why it matters

CVE-2026-45048 allows low-privileged users to retrieve session credentials of other users in OpenAM deployments using stateful session storage. Defenders should prioritize verification, upgrading, and monitoring to prevent session hijacking.

• Session hijacking is possible for authenticated users with low privileges
• Credentials for more privileged accounts may be exposed
• Defenders must verify OpenAM version and monitor for suspicious activity

Technical summary

The SessionRequestHandler in OpenAM's session management endpoint does not enforce ownership or privilege checks, allowing a low-privileged authenticated user to retrieve session information of another user, including credentials for a more privileged account. This can lead to session hijacking if an attacker knows a target identity identifier. The issue is fixed in version 16.1.1, where proper checks have been implemented to prevent such unauthorized access. Defenders should prioritize verifying and upgrading to version 16.1.1 if using an affected version of OpenAM, and monitor for suspicious session activity.

Defensive priority

Defenders should prioritize verifying and upgrading to version 16.1.1 if using an affected version of OpenAM, and monitor for suspicious session activity.

Recommended defensive actions

• Verify OpenAM version and upgrade to 16.1.1 if necessary
• Monitor for suspicious session activity
• Restrict access to session management endpoints
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on exploitation or affected deployments is limited. Defenders should verify OpenAM version and monitor for suspicious activity. Limited source detail is available, so explicit evidence-limit language and defensive verification tasks are necessary.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.