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CVE-2026-21790mediumCWE-346

HCL Traveler is susceptible to a weak default HTTP header validation vulnerability

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.3epss 0.1%
exploitation probability
0.1%top 95% of all CVEs
observed exploitation
nono source reports it
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 · Traveler