Mcp-atlassian

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    Products: 1
    Vulnerabilities: 30
    Known Exploited: 0
    3
    Critical Level Threats
    13
    High Level Threats
    14
    Medium Level Threats
    0
    Low Level Threats

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    Vulnerabilities

    CVE-2026-77246

    MCP Atlassian: MCP HTTP Client Server-Local File Exfiltration via Unvalidated Attachment Upload Path

    Last Modified: Sep 28, 2026
    Published: Sep 22, 2026

    CVE-2026-77248

    MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport

    Last Modified: Sep 28, 2026
    Published: Sep 22, 2026

    CVE-2026-77256

    MCP Atlassian: OAuth refresh-token backup file is world-readable under default Unix umask

    Last Modified: Sep 28, 2026
    Published: Sep 22, 2026

    CVE-2026-77249

    MCP Atlassian: Incomplete fix for CVE-2026-27826: redirect-based SSRF via unhooked requests session in Jira user-permission lookup

    Last Modified: Sep 29, 2026
    Published: Sep 22, 2026

    CVE-2026-77259

    MCP Atlassian: Arbitrary file read via confluence_upload_attachment allows exfiltration of server credentials

    Last Modified: Sep 29, 2026
    Published: Sep 22, 2026
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    Mcp-Atlassian Vulnerabilities & Security CVEs | CVE-DB