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    CVE-2021-26085

    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.

    Published:Aug 3, 2021
    Last Modified:Oct 24, 2025
    EPS:Aug 3, 2021
    EPSS Score:0.94206
    CVSS Score:5.3

    CISA Notification

    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.

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    Apr 18, 2022
    1607 days ago
    Alert Date
    Mar 28, 2022
    1628 days ago

    Affected Products

    Vendor
    Atlassian
    Product
    Confluence Data Center
    Vendor
    Atlassian
    Product
    Confluence Server

    Exploits

    http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.htmlhttp://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.htmlhttps://www.exploit-db.com/exploits/50377https://github.com/ColdFusionX/CVE-2021-26085

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High