CVE-2026-63174: Omnispace Agora Project < 26.10.0 Broken Access Control via spaceAffectList
Omnispace Agora Project before 26.10.0 contains a broken access control vulnerability that allows a space administrator to assign users into spaces outside their authority because the spaceAffectList affectation was performed without verifying the caller's rights to the target space. Attackers can exploit the missing readRight() check in the import flow's join INSERT to break tenant isolation and manipulate user-space assignments across unauthorized spaces.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An attacker needs space administrator privileges. The flaw lets that administrator assign users to spaces for which they do not have authority.
Which deployments are affected?
Omnispace Agora Project versions before 26.10.0 are affected. The issue occurs in the import flow when spaceAffectList assignments are processed.
What should be reviewed for signs of exploitation?
Review user-to-space assignments created through the import flow for assignments into spaces managed outside the acting administrator's authority. The vulnerable operation is the join INSERT that lacks a readRight() check on the target space.