Vulnerability · Published Jun 5, 2026 · Assigned by HCL
CVE-2026-21826HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection
Medium 6.1
In plain English
A medium-severity open redirect in Digital Experience & DX Compose from HCLSoftware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.1%top 96.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HCLSoftware | Digital Experience & DX Compose | 9.5 |
Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N