CVE-2026-21790CWE-346

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

Medium · published March 24, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
4.4
In the wild
Unconfirmed
What it is

HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00156 · 4.4th percentile
Weakness
CWE-346 · Origin Validation Error
Published
2026-03-24T20:04Z
EPSS history
Timeline
  • 24 MAR 20:04Z
    HCL Traveler is susceptible to a weak default HTTP header validation vulnerability
    cvelistv5