CVE-2026-21836

MEDIUMCVSS 6.5/10EPSS 0.26%

Last modified

CVE-2026-21836 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
0.26%

18.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
HCLSoftwareDominoIQ14.5.1

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-21836?
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.
How severe is CVE-2026-21836?
CVE-2026-21836 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2026-21836?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST