CVE-2026-21790: HCL Traveler is susceptible to a weak default HTTP header validation vulnerability
HCLSoftware · Traveler
Affected: HCLSoftware Traveler · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 5% of scored CVEs
DescriptionCVE.org
HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- HCLSoftware · Traveler< 14.5.1.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- HCLSoftware
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-21790 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.