PT-2026-105849

Summary The upload attachment functions in both the Jira and Confluence modules accept a user-controlled file path parameter and open the specified file for reading without calling validate safe path. An authenticated MCP client can supply an arbitrary path such as /etc/passwd or...

PT-2026-105841

Summary Missing path validation in confluence upload attachment allows any authenticated MCP client to read arbitrary files from the server filesystem and exfiltrate their contents to Confluence. On Linux deployments, /proc/self/environ yields all runtime secrets in a single call. --- Details...

PT-2026-105852

Summary mcp-atlassian is a popular community MCP server wrapper exposing Jira / Confluence to MCP clients. Operators commonly restrict the surface to a small allowlist of projects/spaces via the JIRA PROJECTS FILTER and CONFLUENCE SPACES FILTER environment variables, which the README documents as...

PT-2026-105851

Summary MCP Atlassian exposes Jira and Confluence attachment upload tools that accept arbitrary local filesystem paths and upload those file contents to Atlassian. In HTTP or multi-user deployments, an MCP caller who can invoke write tools can cause the server to read any file accessible to the M...

PT-2026-105843

Summary The upload attachment method in confluence/attachments.py reads and uploads arbitrary local files to Confluence without calling validate safe path. Both download methods download attachment at line 223, download content attachments at line 272 correctly call validate safe path before...

PT-2026-105842

Summary The path traversal fix introduced in v0.17.0 GHSA-xjgw-4wvw-rgm4 is incomplete. validate safe path is called without an explicit base dir, defaulting to os.getcwd. In standard container deployments the process CWD is the application directory e.g. /app, so paths within that directory,...

PT-2026-105850

sooperset/mcp-atlassian: HTTP upload tools can attach arbitrary server-local files Date: 2026-05-05 Target: sooperset/mcp-atlassian Commit: d8bc78698a63cb6b321c7ca796d6329d448f7f6d Summary mcp-atlassian supports HTTP/SSE deployment for persistent, remote, and multi-user use. In that mode,...

PT-2026-105844

Summary The upload attachment tools in both Confluence and Jira accept arbitrary file paths without path traversal validation. The upload attachment methods read any file accessible to the server process and upload it to a Confluence page or Jira issue. Despite the existence of a validate safe pa...

PT-2026-105853

Summary The mcp-atlassian server exposes an MCP tool confluence upload attachment and the Jira attachment variant that accepts an arbitrary server-side file path and opens it for upload without any path validation. When the server is deployed in HTTP transport mode streamable-http or sse, a remot...

PT-2026-105839

Summary The UserTokenMiddleware extracts URLs from X-Atlassian-Jira-Url and X-Atlassian-Confluence-Url HTTP headers and passes them directly to API client constructors without any SSRF validation. Affected Package - Ecosystem: PyPI - Package: mcp-atlassian - Affected versions: all versions before...

Confluence - Remote Code Execution

Confluence Server and Data Center is susceptible to an unauthenticated remote code execution vulnerability. id: CVE-2022-26134 info: name: Confluence - Remote Code Execution author: pdteam,jbertman severity: critical description: | Confluence Server and Data Center is susceptible to an...

Atlassian Confluence 7.4.x < 9.2.24 / 9.3.x < 10.2.17 (CONFSERVER-104433)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-104433 advisory. - Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty...

Atlassian Confluence 8.9.x < 9.2.22 / 9.5.x < 10.2.14 (CONFSERVER-104406)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-104406 advisory. - node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas help...

Atlassian Confluence 8.9.x < 9.2.24 / 9.3.x < 10.2.17 (CONFSERVER-104434)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-104434 advisory. - In Bouncy Castle for Java before 1.85, Name Constraints bypass via trailing dot in rfc822Name and URI. This issue also affects Bouncy Castle for...

Atlassian Confluence 8.9.x < 9.2.24 / 9.3.x < 10.2.17 (CONFSERVER-104443)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-104443 advisory. - In Bouncy Castle for Java before 1.85, MTI/A0 DH agreement exponentiates unvalidated peer value. This issue also affects Bouncy Castle for Java L...

LetsDefend-SOC235-Atlassian-Confluence-Broken-Access-Control-0-Day-CVE-2023-22515-EventID-197

LetsDefend-SOC235-Atlassian-Confluence-Broken-Access-Control-0-Day-CVE-2023-22515-EventID-197 I was presented with a high-severity alert indicating a potential exploit attempt of CVE-2023-22515, a zero-day vulnerability in Atlassian Confluence. The alert showed a suspicious GET request from an...

GHSA-93XW-J965-9MX3 MCP Atlassian: Arbitrary file read/exfiltration via upload_attachment missing validate_safe_path()

Summary The uploadattachment method in confluence/attachments.py reads and uploads arbitrary local files to Confluence without calling validatesafepath. Both download methods downloadattachment at line 223, downloadcontentattachments at line 272 correctly call validatesafepath before writing file...

MCP Atlassian: Arbitrary file read/exfiltration via upload_attachment missing validate_safe_path()

Summary The uploadattachment method in confluence/attachments.py reads and uploads arbitrary local files to Confluence without calling validatesafepath. Both download methods downloadattachment at line 223, downloadcontentattachments at line 272 correctly call validatesafepath before writing file...

MCP Atlassian: Arbitrary server-local file upload to Jira/Confluence attachments via unrestricted file_path parameters

Summary The Jira and Confluence attachment upload tools accept caller-controlled file path parameters and read those paths from the MCP server's local filesystem before uploading the file as an Atlassian attachment. In local stdio deployments, this can expose files readable by the user's MCP...

GHSA-F6PJ-QV47-G96W MCP Atlassian: Arbitrary server-local file upload to Jira/Confluence attachments via unrestricted file_path parameters

Summary The Jira and Confluence attachment upload tools accept caller-controlled file path parameters and read those paths from the MCP server's local filesystem before uploading the file as an Atlassian attachment. In local stdio deployments, this can expose files readable by the user's MCP...