PyPI/mcp-atlassian CVE-2026-77266: medium 6.5
MCP Atlassian: Path traversal in upload_attachment allows arbitrary file read and exfiltration via MCP tool call
Action: Upgrade mcp-atlassian to 0.22.0 or later.
pip install mcp-atlassian==0.22.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 0.22.0 | - |
Fixed versions
| 0.22.0 |
Sources
- osv: GHSA-mfv2-4wvm-9pgp
- https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-mfv2-4wvm-9pgp
- https://github.com/sooperset/mcp-atlassian/pull/1448
- https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460
- https://github.com/sooperset/mcp-atlassian
- https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0
CVE-2026-77266 · published · modified · JSON