CVE-2026-4270

MEDIUM

5.5

Beschreibung

Improper Protection of Alternate Path exists in the no-access and workdir feature of the AWS API MCP Server versions >= 0.2.14 and < 1.3.9 on all platforms may allow the bypass of intended file access restriction and expose arbitrary local file contents in the MCP client application context. To remediate this issue, users should upgrade to version 1.3.9.

CVE Details

CVSS v3.1 Bewertung5.5

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht3/16/2026

Zuletzt geandert3/17/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-424

Referenzen

https://aws.amazon.com/security/security-bulletins/2026-007-AWS/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://pypi.org/project/awslabs.aws-api-mcp-server/1.3.9/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

IOC Korrelationen

Keine Korrelationen erfasst

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