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Affected Vendors & Products
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Solution
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Workaround
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Tue, 22 Sep 2026 19:30:00 +0000
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ssvc
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Tue, 22 Sep 2026 18:30:00 +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, Jira and Confluence attachment upload tools accept arbitrary local filesystem paths and send the selected bytes to Atlassian. In HTTP or multi-user deployments, a caller can cross the client-to-server filesystem boundary and disclose configuration, credentials, mounted secrets, or other files readable by the MCP process. The advisory traces the vulnerable input and processing flow through jira_upload_attachment, confluence_upload_attachment, file_path, and server-local filesystem, which identify the affected entry points, controls, and code paths. This issue is fixed in version 0.22.0. | |
| Title | MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-22T18:49:49.816Z
Reserved: 2026-08-20T19:02:23.416Z
Link: CVE-2026-77253
Updated: 2026-09-22T18:49:43.704Z
Status : Received
Published: 2026-09-22T19:16:49.540
Modified: 2026-09-22T19:16:49.540
Link: CVE-2026-77253
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OpenCVE Enrichment
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