CVE-2026-21826 MEDIUM

CVE-2026-21826: HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection

Vendor Hclsoftware
Product Digital Experience & DX Compose
Weakness CWE-601 · Open redirect
Published June 5, 2026
Last update June 9, 2026
View on NVD All CVEs

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection.  An attacker can manipulate the Host header and cause the application to behave in unexpected ways.

Key dates

02Disclosure timeline

June 5, 2026 CVE published
June 9, 2026 Record updated