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    CVE-2021-26086

    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.

    Published:Aug 16, 2021
    Last Modified:Oct 24, 2025
    EPS:Aug 16, 2021
    EPSS Score:0.94264
    CVSS Score:5.3

    CISA Notification

    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.

    Required Action:

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Dec 3, 2024
    647 days ago
    Alert Date
    Nov 12, 2024
    668 days ago

    Affected Products

    Vendor
    Atlassian
    Product
    Jira Data Center
    Vendor
    Atlassian
    Product
    Jira Server

    Exploits

    http://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-File-Read.htmlhttp://packetstormsecurity.com/files/164405/Atlassian-Jira-Server-Data-Center-8.4.0-File-Read.htmlhttps://www.exploit-db.com/exploits/50380https://github.com/ColdFusionX/CVE-2021-26086https://github.com/Jeromeyoung/CVE-2021-26086https://github.com/Official-BlackHat13/CVE-2021-26086

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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