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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-21836

The HCL DominoIQ RAG feature is affected by a Broken Access Control vulnerability.

MEDIUM 6.5EPSS 0.26%

Does this matter?

Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
0.26% probability · 18th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-862
Source
psirt@hcl.com
EPSS trend
0%3%5%27 October 2026: 0.26%27 October 202627 October 2026

EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.