What’s Vulnerable › Vulnerabilities
CVE-2026-21826: HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-05 · updated 2026-07-23
- Weakness: CWE-601
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
- HCL Digital Experience: 9.5, 9.5-cf17, 9.5-cf171, 9.5-cf172, 9.5-cf173, 9.5-cf18 (+49)
- Hcltech Digital Experience Compose: 9.5, 9.5-cf224, 9.5-cf225, 9.5-cf226, 9.5-cf227, 9.5-cf228 (+6)
References
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