Veille CVE
CVE-2026-77274
8.2 ÉlevéeDescription
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, validate_url_for_ssrf has a backslash authority confusion because it interprets the authority differently from the Requests connection layer in the header-based Jira and Confluence URL authentication flow. A crafted URL can validate as an external hostname while the HTTP client connects to an internal host, permitting server-side requests to protected network resources. This issue is fixed in version 0.22.0.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 4.0 | 8.8 Élevée | security-advisories@github.com | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/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 | 8.2 Élevée | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N |
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-hgcf-4mq8-5266 ExploitVendor Advisory
- https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-hgcf-4mq8-5266 ExploitVendor Advisory