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22 September 2026

Vulnerabilities first published on this day (UTC), newest first.

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All Critical High Medium Low Exploited only Public exploit

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  • High 8.6
    CVE-2026-77262 Public exploit

    MCP Atlassian: Path Traversal / Arbitrary File Read in confluence_upload_attachment MCP tool (incomplete fix of CVE-2026-27825)

    MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, confluence_upload_attachment accepts an attacker-controlled file_path and does not apply the path restriction added for the earlier download …

    sooperset mcp-atlassian mcp-atlassian PyPI
  • High 8.4
    CVE-2026-83603 Public exploit

    Netdata: Local Root via ndsudo Arbitrary socket_path → fail2ban-client Pickle RCE

    Netdata is an open source observability tool. Prior to 2.10.4, the setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socket_path from the low-privileged netdata service account. The …

    netdata netdata netdata netdata Debian Ubuntu
  • High 8.1
    CVE-2026-87902 Exploited Public exploit Scanner template EPSS 96%

    An unauthenticated attacker can make `get_page_template()` page-template resolution include a chosen readable local `.p…

    WordPress WordPress wordpress wordpress Web / CMS Debian Ubuntu
    KEV Sep 25, 2026