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CVE-2026-79537

🗓️ 29 Sep 2026 00:00:00Reported by mitreType 
cve
 cve
🔗 web.nvd.nist.gov👁 25 Views🌐 WEB

IDOR in MetaMCP MCP transport session dispatch allows listing and executing private tools.

Related
Refs
Paths
ReporterTitlePublishedViews
Family
cvelist
Cvelist
CVE-2026-79537
29 Sep 202600:00
–cvelist
euvd
EUVD
EUVD-2026-89362
29 Sep 202600:00
–euvd
nvd
NVD
CVE-2026-79537
29 Sep 202620:17
–nvd
osv_cve
osv_cve
CVE-2026-79537
29 Sep 202600:00
–osv_cve
ptsecurity
Positive Technologies
PT-2026-102820
29 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-79537: Authorization Bypass Through User-Controlled Key
29 Sep 202600:00
–rapid7
vulnrichment
Vulnrichment
CVE-2026-79537
29 Sep 202600:00
–vulnrichment
ParameterPositionPathDescriptionCWE
mcp-session-idheader/metamcp/health/sessionsInsecure direct object reference via session id enables cross-tenant session takeover by using another tenant's session id obtained from the health endpoint, leading to access to victim's tools and data.CWE-639

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30 Sep 2026 17:32Current
6Medium risk
Vulners AI Score6
CVSS 3.19.1
EPSS0.0031
SSVC
25