What is CVE-2026-73498?

CVE-2026-73498 is a high-severity vulnerability in Sooperset Mcp-atlassian, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-08-12.

How severe is CVE-2026-73498?

High severity. CVSS v3 base score is 7.7 out of 10.

Path Traversal in Sooperset Mcp-atlassian

CVE-2026-73498

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, confluence_upload_attachment passes its client-supplied file_path directly to open(file_path, "rb") in src/mcp_atlassian/…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Sooperset Mcp-atlassian — versions < 0.22.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-73498?: CVE-2026-73498 is a high-severity vulnerability in Sooperset Mcp-atlassian, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-08-12.
How severe is CVE-2026-73498?: High severity. CVSS v3 base score is 7.7 out of 10.