MCP Atlassian: Arbitrary local file READ via unconstrained file_path in upload_attachment (Confluence + Jira)
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| sooperset | mcp-atlassian | affected |
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| Sooperset | Mcp-atlassian |
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| Source | ID | Title |
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Github GHSA |
GHSA-f4p7-qx46-wc5j | MCP Atlassian: Arbitrary local file READ via unconstrained file_path in upload_attachment (Confluence + Jira) |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.385% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Mcp-atlassian
Mcp-atlassian mcp Atlassian |
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| CPEs | cpe:2.3:a:mcp-atlassian:mcp_atlassian:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mcp-atlassian
Mcp-atlassian mcp Atlassian |
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| Metrics |
cvssV3_1
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| Metrics |
ssvc
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| First Time appeared |
Sooperset
Sooperset mcp-atlassian |
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| Vendors & Products |
Sooperset
Sooperset mcp-atlassian |
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| Description | MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the Confluence and Jira upload_attachment implementations accept an unconstrained file_path and open the referenced server-local file. A permitted MCP caller can upload sensitive host files to an Atlassian destination and then retrieve their contents. The advisory traces the vulnerable input and processing flow through 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. | |
| Title | MCP Atlassian: Arbitrary local file READ via unconstrained file_path in upload_attachment (Confluence + Jira) | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV4_0
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