CVE-2026-77262

Katalog CVE

CVSS 8.6 · High EPSS 0,49%

Kerentanan Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') pada mcp-atlassian mcp atlassian. Skor CVSS 3.1 8.6 (High) menurut github.com.

Deskripsi (NVD)

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 vulnerability. A caller can traverse outside the workspace and upload arbitrary server-readable files to Confluence. The advisory traces the vulnerable input and processing flow through confluence_upload_attachment, file_path, and CVE-2026-27825, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0.

Rincian

Terbit di NVD

22 September 2026

Terakhir diubah

29 September 2026

Status NVD

Analyzed

CVSS 3.1

8.6 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-p6hp-93wp-fh6p exploit · advisory vendor
• https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460 patch
• https://github.com/sooperset/mcp-atlassian/pull/1448 issue tracking · patch
• https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0 release notes