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CVE-2026-77267 mcp-atlassian has an incomplete SSRF remediation

🗓️ 22 Sep 2026 17:52:25Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the X-Atlassian-Jira-Url and X-Atlassian-Confluence-Url headers are processed by _process_authentication_headers and used to cons...

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-77267
22 Sep 202617:52
cve
euvd
EUVD
EUVD-2026-84621
22 Sep 202617:52
euvd
github
Github Security Blog
mcp-atlassian has an incomplete SSRF remediation
22 Sep 202620:36
github
nvd
NVD
CVE-2026-77267
22 Sep 202618:17
nvd
osv
OSV
GHSA-5WF4-JQXH-8GM3 mcp-atlassian has an incomplete SSRF remediation
22 Sep 202620:36
osv
[
  {
    "vendor": "sooperset",
    "product": "mcp-atlassian",
    "versions": [
      {
        "version": "< 0.22.0",
        "status": "affected"
      }
    ]
  }
]

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22 Sep 2026 17:52Current
CVSS 48.3
5