PT-2026-25773 · Amazon Web Services · Aws Api Mcp Server

CVE-2026-4270 · Publicado 2026-03-16 · Atualizado 2026-05-15

Positive Technologies (AI Summary)

CVSS v4.0

6.8

Média

Vetor base

AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions AWS API MCP Server versions 0.2.14 through 1.3.8

Description The AWS API MCP Server, used to enable AI assistants to interact with AWS services, has an issue where file access restrictions can be bypassed. This affects the 'no-access' and 'workdir' features, potentially exposing arbitrary local file contents to the MCP client application context. The server acts as a bridge between AI assistants and AWS services, allowing management of AWS infrastructure. It includes a configurable file access feature that controls how AWS CLI commands interact with the local file system.

Recommendations Upgrade to version 1.3.9.

Correção

Enumeração de Fraquezas

CWE-424

Identificadores relacionados

CVE-2026-4270

GHSA-2CPP-J2FC-QHP7

PYSEC-2026-162

Produtos afetados

Aws Api Mcp Server

Referências · 12

• https://github.com/awslabs/mcp · Nota
• https://github.com/awslabs/mcp/security/advisories/GHSA-2cpp-j2fc-qhp7 · Nota
• https://github.com/pypa/advisory-database/tree/main/vulns/awslabs-aws-api-mcp-server/PYSEC-2026-162.yaml · Nota
• https://twitter.com/DarFazulyanov/status/2035401419621269748 · Publicação no Twitter
• https://twitter.com/VulmonFeeds/status/2033612815441723546 · Publicação no Twitter
• https://pypi.org/project/awslabs.aws-api-mcp-server/1.3.9 · Correção
• https://aws.amazon.com/security/security-bulletins/2026-007-AWS · Aviso do Fabricante
• https://osv.dev/vulnerability/PYSEC-2026-162 · Aviso do Fabricante
• https://osv.dev/vulnerability/GHSA-2cpp-j2fc-qhp7 · Aviso do Fabricante
• https://github.com/advisories/GHSA-2cpp-j2fc-qhp7 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-4270 · Nota de Segurança
• https://twitter.com/AwsSecDigest/status/2055375922350452832 · Publicação no Twitter