CVE-2026-63158 Omnispace CVE debrief

Who should care

Administrators and users of Omnispace Agora Project should assess their exposure and update to version 26.10.0 or later to prevent potential authentication bypass attacks. Affected operators, platform administrators, vulnerability management teams, and security teams should review and implement additional authentication mechanisms to prevent pass-the-hash attacks. They should also monitor for suspicious login attempts and review user accounts for potential

Why it matters

CVE-2026-63158 is a critical authentication bypass vulnerability in Omnispace Agora Project before 26.10.0 that allows attackers to impersonate users and gain unauthorized access to the application. Defenders should prioritize updating to version 26.10.0 or later and monitoring for suspicious login attempts.

• Attackers can impersonate any user, including administrators, and gain unauthorized access to the application.
• The vulnerability allows for lateral movement and potential exploitation of sensitive data.
• Defenders should prioritize updating to version 26.10.0 or later to prevent potential authentication bypass attacks.
• Verification of user accounts and login attempts is necessary to detect potential compromise.

Technical summary

The Omnispace Agora Project before 26.10.0 contains an authentication bypass vulnerability that allows attackers possessing a user's stored bcrypt password hash to authenticate as that user without knowing the actual password. This is caused by the legacy AGORAP_LOG/AGORAP_PASS cookie mechanism treating the stored hash as a directly replayable bearer credential. The vulnerability enables attackers to impersonate any user, including administrators, and gain unauthorized access to the application. Defenders should prioritize updating to version 26.10.0 or later and monitoring for suspicious login attempts.

Defensive priority

High

Recommended defensive actions

• Review and update Omnispace Agora Project to version 26.10.0 or later
• Implement additional authentication mechanisms to prevent pass-the-hash attacks
• Monitor for suspicious login attempts and review user accounts for potential compromise
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and source item provide details on the authentication bypass vulnerability in Omnispace Agora Project before 26.10.0. The vulnerability allows attackers with a user's stored bcrypt password hash to authenticate as that user without knowing the actual password.

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.