{
    "id": "CVE-2021-26085",
    "published": "2021-08-03 00:15:08",
    "last_modified": "2026-06-17 03:42:49",
    "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-425",
    "description": "Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization Arbitrary File Read vulnerability in the /s/ endpoint. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.",
    "epss_score": "0.99937",
    "epss_percentile": "0.99970",
    "kev": 1,
    "kev_due": "2022-04-18",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:27:49",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-04-18."
    },
    "products": [
        {
            "vendor": "atlassian",
            "product": "confluence_data_center"
        },
        {
            "vendor": "atlassian",
            "product": "confluence_server"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-26085",
        "date_added": "2022-03-28",
        "due_date": "2022-04-18",
        "vendor": "Atlassian",
        "product": "Confluence Server",
        "name": "Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability",
        "ransomware": 1
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50377",
            "title": "Atlassian Confluence 7.12.2 - Pre-Authorization Arbitrary File Read",
            "date": "2021-10-05",
            "url": "https://www.exploit-db.com/exploits/50377"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html",
        "https://jira.atlassian.com/browse/CONFSERVER-67893",
        "http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html",
        "https://jira.atlassian.com/browse/CONFSERVER-67893",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26085"
    ]
}