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CVE-2026-4270

🗓️ 16 Mar 2026 16:07:53Reported by AMZNType 
cve
 cve
🔗 web.nvd.nist.gov👁 4 Views

CVE-2026-4270: AWS API MCP Server alternate path bypasses file access; upgrade to 1.3.9.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2026-4270
20 Mar 202621:06
circl
CNNVD
Amazon Web Services API MCP Server 安全漏洞
16 Mar 202600:00
cnnvd
Cvelist
CVE-2026-4270 AWS API MCP File Access Restriction Bypass
16 Mar 202616:07
cvelist
EUVD
EUVD-2026-12474
17 Mar 202620:33
euvd
Github Security Blog
AWS API MCP File Access Restriction Bypass
17 Mar 202620:33
github
NVD
CVE-2026-4270
16 Mar 202617:16
nvd
OSV
GHSA-2CPP-J2FC-QHP7 AWS API MCP File Access Restriction Bypass
17 Mar 202620:33
osv
OSV
PYSEC-2026-162
16 Mar 202617:16
osv
Positive Technologies
PT-2026-25773
16 Mar 202600:00
ptsecurity
PyPA
PYSEC-2026-162
16 Mar 202617:16
pypa
Rows per page
NVD
Node
amazonaws_api_mcp_serverRange0.2.141.3.9python
[
  {
    "vendor": "AWS",
    "product": "AWS API MCP Server",
    "versions": [
      {
        "status": "affected",
        "version": "0.2.14",
        "lessThan": "1.3.9",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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21 May 2026 15:58Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.5
CVSS 46.8
EPSS0.00019
SSVC
4