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

{
    "lastseen": "",
    "description": "HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.",
    "published": "2026-03-24T20:04:28.585Z",
    "modified": "2026-03-24T20:28:10.662Z",
    "type": "cve",
    "title": "HCL Traveler is susceptible to a weak default HTTP header validation vulnerability",
    "source": "HCL",
    "references": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129139",
    "id": "CVE-2026-21790",
    "bulletinFamily": "",
    "cwe": [
        "CWE-346"
    ],
    "cvelist": null,
    "sourceData": "HCLSoftware Traveler < 14.5.1.0",
    "sourceHref": "",
    "cvss": {
        "score": 6.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Traveler",
    "version": "< 14.5.1.0",
    "vendor": "HCLSoftware",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}