CVE-2026-21790
Medium
Description
HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.
SeverityMedium
CVSS6.3
Exploit probability—
ProductTraveler
PublishedMar 24, 2026
First seenMar 24, 2026
Weakness typeCWE-346CWE-346
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| HCLSoftware Traveler | < 14.5.1.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.