CVE-2026-4270

MEDIUM

5.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.5

SeveridadeMEDIUM

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioREQUIRED

Publicado3/16/2026

Ultima modificacao3/17/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-424

Referencias

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)

Correlacoes IOC

Sem correlacoes registradas

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