CVE-2026-125271AWS API MCP Server Security Policy Bypass via Incorrect Operation Name Normalization

Açıklama

Incorrect normalization of operation names in the custom security policy enforcement in awslabs aws-api-mcp-server before 1.5.1 might allow an actor to execute AWS API operations across AWS services that the operator's security policy was configured to deny or require elicitation for, via calls to operations whose names contain consecutive capital letters. To remediate this issue, users should upgrade to version 1.5.1.

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Kaynaklar ve yamalar

• https://pypi.org/project/awslabs.aws-api-mcp-server/1.5.1/ release-notespatch
• https://aws.amazon.com/security/security-bulletins/2026-176-aws/ vendor-advisory
• https://github.com/awslabs/mcp/security/advisories/GHSA-4wq9-grf3-qg2p third-party-advisory