CVE-2026-21826
MEDIUMCVSS 6.1/10EPSS 0.14%
Last modified
CVE-2026-21826 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hcltech | Digital Experience Compose | 9.5 |
| Hcltech | Digital Experience | 9.5 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-21826?
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.
How severe is CVE-2026-21826?
CVE-2026-21826 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.
How do I fix CVE-2026-21826?
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.
How Strix Helps
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Are you affected by CVE-2026-21826?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST