MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the remediation for CVE-2026-27825 protects download destinations but does not constrain source paths used by attachment uploads. A caller can provide an absolute or traversal file_path and cause the server to upload the selected local file. 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.
Metrics
Affected Vendors & Products
References
History
Tue, 29 Sep 2026 13:15:00 +0000
| 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 |
Sat, 26 Sep 2026 00:30:00 +0000
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| Metrics |
ssvc
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Tue, 22 Sep 2026 19:45:00 +0000
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| First Time appeared |
Sooperset
Sooperset mcp-atlassian |
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| Vendors & Products |
Sooperset
Sooperset mcp-atlassian |
Tue, 22 Sep 2026 18:45:00 +0000
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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 remediation for CVE-2026-27825 protects download destinations but does not constrain source paths used by attachment uploads. A caller can provide an absolute or traversal file_path and cause the server to upload the selected local file. 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: Path traversal in upload_attachment allows arbitrary file read (incomplete fix for CVE-2026-27825) | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-22T18:32:14.168Z
Updated: 2026-09-26T00:01:51.332Z
Reserved: 2026-08-20T19:14:21.330Z
Link: CVE-2026-77269
Updated: 2026-09-26T00:01:47.263Z
Status : Analyzed
Published: 2026-09-22T19:16:50.920
Modified: 2026-09-29T12:53:55.777
Link: CVE-2026-77269
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