mcp-atlassian
CriticalPyPICVE-2026-77244
What to do
Update mcp-atlassian to 0.22.0 or later.
pip install "mcp-atlassian>=0.22.0"
An authentication bypass flaw affects the PyPI package mcp-atlassian. Affected versions: < 0.22.0. Fixed from version 0.22.0. CVSS score 10.
What the flaw allows: Restricted access can be obtained without valid credentials.
- Package
- mcp-atlassian
- Ecosystem
- PyPI (Python)
- Class
- Authentication bypass
- Affected versions
- < 0.22.0
- CVSS
- 10
- Published on
- September 22, 2026
Sources
Entry built automatically from the cited security advisory, with no model rewriting. Acknowledged by the organisation or vendor, notified to an authority, or established by two independent sources.