Bitwarden Server < 2026.4.1 Authentication Bypass via SCIM API Key_CVE-2026-43640

{
    "lastseen": "",
    "description": "Bitwarden Server prior to v2026.4.1 does not require master-password re-authentication when retrieving or rotating an organization's SCIM API key, allowing an authenticated user with SCIM management privileges to obtain the key using only a valid session.",
    "published": "2026-05-11T17:14:37.931Z",
    "modified": "2026-05-11T17:14:37.931Z",
    "type": "cve",
    "title": "Bitwarden Server < 2026.4.1 Authentication Bypass via SCIM API Key",
    "source": "VulnCheck",
    "references": "https://sanjokkarki.com.np/blog/bitwarden-scim-key-bypass\nhttps://github.com/bitwarden/server/releases/tag/v2026.4.1\nhttps://github.com/bitwarden/server/pull/7403\nhttps://github.com/bitwarden/server/commit/eb251d9bf80724c87b187661783b9354d1784083\nhttps://www.vulncheck.com/advisories/bitwarden-server-authentication-bypass-via-scim-api-key",
    "id": "CVE-2026-43640",
    "bulletinFamily": "",
    "cwe": [
        "CWE-303"
    ],
    "cvelist": null,
    "sourceData": "bitwarden server 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.6,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "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": "server",
    "version": "0",
    "vendor": "bitwarden",
    "ai_description": "Authentication bypass vulnerability in Bitwarden Server via SCIM API key",
    "ai_severity": "High",
    "ai_vendor": "Bitwarden",
    "ai_product": "Bitwarden Server",
    "ai_version": "< 2026.4.1",
    "ai_score": 8.6
}