What’s Vulnerable › Vulnerabilities
CVE-2026-21790: HCL Traveler is susceptible to a weak default HTTP header validation vulnerability
- Severity: medium (CVSS 6.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-24 · updated 2026-06-17
- Weakness: CWE-346
Description
HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.
Affected products
- HCL Software HCL Traveler: before 14.5.1.0
References
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