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CVE-2026-77257

CVE-2026-77257 · MCP Atlassian: HTTP upload tools accept arbitrary server-local file paths

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, HTTP-exposed Jira and Confluence upload tools pass a caller-provided file_path to local file operations without restricting it to the workspace. A remote MCP caller with tool access can cause the server to read sensitive local files and upload them as Atlassian attachments. The advisory traces the vulnerable input and processing flow through streamable-http, upload_attachment, and file_path, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.

CVSS 8.3 · Alta · EPSS 0,4% · Corrección disponible

Publicación
Actualización

Pila tecnológica: python

Productos y versiones afectados

  • mcp-atlassian

    Versiones
    • < 0.22.0: Afectada

    Sin corrección publicada

  • mcp-atlassian PyPI

    Versiones
    • 0.1.1
    • 0.1.10
    • 0.1.11
    • 0.1.12
    • 0.1.13
    • 0.1.14
    • 0.1.15
    • 0.1.16
    • 0.1.2
    • 0.1.3
    • 0.1.4
    • 0.1.6
    • 0.1.7
    • 0.1.8
    • 0.1.9
    • 0.10.0
    • 0.10.1
    • 0.10.2
    • 0.10.3
    • 0.10.4
    • 0.10.5
    • 0.10.6
    • 0.11.0
    • 0.11.1
    • 0.11.10
    • 0.11.11
    • 0.11.12
    • 0.11.2
    • 0.11.2a2
    • 0.11.3
    • 0.11.4
    • 0.11.5
    • 0.11.6
    • 0.11.7
    • 0.11.8
    • 0.11.9
    • 0.12.0
    • 0.13.0
    • 0.13.1
    • 0.14.0
    • 0.14.1
    • 0.14.2
    • 0.14.3
    • 0.15.0
    • 0.16.0
    • 0.16.1
    • 0.17.0
    • 0.18.0
    • 0.18.1
    • 0.19.0
    • 0.2.0
    • 0.2.1
    • 0.2.2
    • 0.2.3
    • 0.2.4
    • 0.2.5
    • 0.2.6
    • 0.20.0
    • 0.20.1
    • 0.21.0
    • 0.21.1
    • 0.3.0
    • 0.3.1
    • 0.4.0
    • 0.5.0
    • 0.6.0
    • 0.6.1
    • 0.6.2
    • 0.6.3
    • 0.6.4
    • 0.6.5
    • 0.7.0
    • 0.7.1
    • 0.8.0
    • 0.8.1
    • 0.8.2
    • 0.8.3
    • 0.8.4
    • 0.9.0
    Intervalos de versiones afectados
    • ECOSYSTEM: < 0.22.0

    Actualiza a 0.22.0

Fuentes originales

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