CVE-2026-21836 HCL DominoIQ is affected by broken access control
An authenticated attacker can bypass document-level access restrictions in the RAG feature to view sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21836?
CVE-2026-21836 is a medium-severity missing authorization vulnerability in HCLSoftware DominoIQ, published on 20 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The HCL DominoIQ RAG feature is affected by a Broken Access Control vulnerability. Under certain circumstances, document level access restrictions will be ignored when determining what data to return from an AI query. This could enable an authenticated attacker to view sensitive data.
Weakness: CWE-862
Which versions are affected by CVE-2026-21836?
How do I fix CVE-2026-21836?
No fix has been published for CVE-2026-21836 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-21836 being exploited?
There is no known exploitation of CVE-2026-21836 in the wild and no public exploit code.
Sources
Also known as GHSA-2qq9-gw9m-g2rg.