CVE-2026-21790

MEDIUM EPSS 4.6%

Published Mar 24, 20263mo ago · Modified Jun 17, 20262w ago

6.3 CVSS 3.1

Medium

Published Mar 24, 2026 3mo ago

Last Modified Jun 17, 2026 2w ago

Description

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

CVSS Details

Base Score

6.3

Exploitability

2.8

Impact

3.4

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

4.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-346

References 1

support.hcl-software.com https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129139

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.