CVE-2026-21790: medium-severity vulnerability in HCLSoftware Traveler
HCL Traveler is susceptible to a weak default HTTP header validation vulnerability
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.2%
HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Affected products
HCLSoftware · TravelerRelated CVEs — HCLSoftware Traveler
In the same product, most dangerous first.