CVE-2026-63153 Omnispace CVE debrief

Who should care

Defenders responsible for Omnispace Agora Project deployments should assess exposure and apply patches to prevent unauthorized access to restricted spaces. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify exposure, review vendor patch guidance, and monitor for unauthorized access to restricted spaces.

Why it matters

CVE-2026-63153 is a high-severity vulnerability in Omnispace Agora Project versions before 26.10.0 that allows authenticated attackers to break tenant isolation and gain unauthorized access to restricted spaces.

• Verify exposure of Omnispace Agora Project versions before 26.10.0
• Apply patches for Omnispace Agora Project version 26.10.0 or later
• Monitor for unauthorized access to restricted spaces

Technical summary

The Omnispace Agora Project before version 26.10.0 contains a broken access control vulnerability in the setAffectations() function. This vulnerability allows authenticated attackers to insert access-right records for a caller-supplied target space without verifying the caller has rights to that space. As a result, attackers can assign access affectations to spaces outside their own reach, breaking tenant isolation and granting unauthorized access to restricted spaces. The vulnerability has a CVSS score of 8.6 and is considered high severity.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Omnispace Agora Project versions before 26.10.0.

Recommended defensive actions

• Verify exposure of Omnispace Agora Project versions before 26.10.0
• Apply patches for Omnispace Agora Project version 26.10.0 or later
• Monitor for unauthorized access to restricted spaces
• 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 source item provide details on the broken access control vulnerability in Omnispace Agora Project versions before 26.10.0. Evidence is limited to public CVE Program records and Omnispace project documentation. Defenders should verify exposure and review vendor patch guidance for affected deployments. The vulnerability allows authenticated attackers to insert access-right records for a caller-supplied target space without verifying the caller has rights to that space.

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.