جزئیات آسیب‌پذیری
CVE-2026-77255
MCP Atlassian: Arbitrary File Read & Exfiltration (Confused Deputy) in JIRA update_issue
شرح رسمی (انگلیسی)
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the Jira update_issue attachments argument is converted into local paths and routed to the attachment upload implementation without workspace validation. A caller can make the MCP server read arbitrary local files and attach them to a Jira issue, using the server as a confused deputy to exfiltrate the contents. The advisory traces the vulnerable input and processing flow through jira update_issue, attachments, upload_attachment, and file_path, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 8.6بالا | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| sooperset | mcp-atlassian | < 0.22.0 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۴- https://github.com/sooperset/mcp-atlassian/pull/1448 x_refsource_MISC
- https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460 x_refsource_MISC
- https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0 x_refsource_MISC
- https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-2xj6-xx86-cwwc x_refsource_CONFIRM
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۶/۳۱
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۰۴
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- GitHub_M
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- اثبات مفهوم
- اثر فنی
- جزئی
ضعف‌ها (CWE)
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-441Unintended Proxy or Intermediary ('Confused Deputy')