Veille CVE
CVE-2026-77271
8.8 ÉlevéeDescription
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, validate_safe_path defaults its base directory to os.getcwd(), and affected Confluence attachment call sites omit base_dir, allowing attacker-selected writes within the working directory. This Python module overwrite can provide code execution when the application later imports the modified module, bypassing the remediation tracked as CVE-2026-27825. This issue is fixed in version 0.22.0.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 4.0 | 8.3 Élevée | security-advisories@github.com | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| 3.1 | 8.8 Élevée | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460 Patch
- https://github.com/sooperset/mcp-atlassian/pull/1448 Issue TrackingPatch
- https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0 Release Notes
- https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-6vmq-24h2-pj7j ExploitVendor Advisory
- https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-6vmq-24h2-pj7j ExploitVendor Advisory