{
    "id": "CVE-2021-26086",
    "published": "2021-08-16 01:15:06",
    "last_modified": "2026-06-17 03:42:50",
    "cvss_score": "5.3",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
    "cwe": "CWE-22",
    "description": "Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.",
    "epss_score": "0.99999",
    "epss_percentile": "0.99992",
    "kev": 1,
    "kev_due": "2024-12-03",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:27:58",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-12-03."
    },
    "products": [
        {
            "vendor": "atlassian",
            "product": "jira_data_center"
        },
        {
            "vendor": "atlassian",
            "product": "jira_server"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-26086",
        "date_added": "2024-11-12",
        "due_date": "2024-12-03",
        "vendor": "Atlassian",
        "product": "Jira Server and Data Center",
        "name": "Atlassian Jira Server and Data Center Path Traversal Vulnerability",
        "ransomware": 0
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50380",
            "title": "Atlassian Jira Server Data Center 8.16.0 - Arbitrary File Read",
            "date": "2021-10-06",
            "url": "https://www.exploit-db.com/exploits/50380"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-File-Read.html",
        "https://jira.atlassian.com/browse/JRASERVER-72695",
        "http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-File-Read.html",
        "https://jira.atlassian.com/browse/JRASERVER-72695",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26086"
    ]
}