CVE-2026-21790 - HCL Traveler is susceptible to a weak default HTTP header validation vulnerability

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MEDIUM

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

Published Mar 24, 2026

6.3

MEDIUM

CVSS 3.1

EPSS 0.15%

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

Vendor HCLSoftware Product Traveler Default
unaffected
- Version
  < 14.5.1.0
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

HCLSoftware

Traveler

unaffected

Version	Status	Constraints
< 14.5.1.0	affected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-346

References (2)

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-15002		Advisory
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129139

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner HCL

Published Mar 24, 2026

Updated Mar 24, 2026

Reserved Jan 5, 2026

Link CVE-2026-21790

CISA Vulnrichment

Updated Mar 24, 2026

NVD

Status Awaiting Analysis

Modified Jun 17, 2026

Link CVE-2026-21790

Red Hat

Severity n/a

Public date n/a

Links CVE-2026-21790

ENISA EUVD

Assigner HCL

Published Mar 24, 2026

Updated Mar 24, 2026

Exploited since n/a

Link EUVD-2026-15002

EUVD-2026-15002