CVE-2026-21790

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CVSS 3.1

6.3 medium

EPSS

<1%p5

Published

Mar 24, 2026 (Mar 24, 2026)

Modified

Jun 17, 2026

Description

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

Weakness: CWE-346
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

NVD CVE.org GitHub PoCs EPSS (0.1%)

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