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CVE-2026-77267

🗓️ 22 Sep 2026 17:52:25Reported by MendType 
mend
 mend
🔗 www.mend.io👁 17 Views

SSRF in MCP Atlassian via X-Atlassian-Jira-Url and X-Atlassian-Confluence-Url headers.

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Detection
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-77267
22 Sep 202622:35
–circl
cve
CVE
CVE-2026-77267
22 Sep 202617:52
–cve
cvelist
Cvelist
CVE-2026-77267 mcp-atlassian has an incomplete SSRF remediation
22 Sep 202617:52
–cvelist
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_cve
osv_cve
CVE-2026-77267 mcp-atlassian has an incomplete SSRF remediation
22 Sep 202617:52
–osv_cve
osv_ghsa
osv_ghsa
GHSA-5WF4-JQXH-8GM3 mcp-atlassian has an incomplete SSRF remediation
22 Sep 202620:36
–osv_ghsa
osv_pysec
osv_pysec
PYSEC-2026-4084 mcp-atlassian has an incomplete SSRF remediation
1 Oct 202616:38
–osv_pysec
ptsecurity
Positive Technologies
PT-2026-105839
1 Oct 202600:00
–ptsecurity
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Vulners
Node
OR
mcp-atlassianmcp_atlassianRange0.21.1–0.22.0
mcp-atlassianmcp_atlassianRange0.1.0–0.22.0
mcp-atlassianmcp_atlassianRange0.17.0–0.22.0

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08 Oct 2026 00:08Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5 - 7.7
CVSS 48.3
EPSS0.0032
SSVC
17