# AWS API MCP Server vulnerabilities Source: https://junglewise.ai/threats/technologies/api-mcp-server Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 10 November 2026, 18:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/api-mcp-server.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 4 vulnerabilities in AWS API MCP Server: 1 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-125271, was published on 10 November 2026. 1 vulnerability in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 1 - Last 30 days: 2 - Last 90 days: 2 - All time: 4 (0 critical, 0 exploited in the wild) ## About AWS API MCP Server AWS library implementing the Model Context Protocol for API operations. ## Latest AWS API MCP Server vulnerabilities - [CVE-2026-125271: AWS API MCP Server security policy bypass via operation name normalization](https://junglewise.ai/threats/cve-2026-125271-aws-api-mcp-server-security-policy-bypass-via-incorrect) (high, CVSS 7.8, published 10 Nov 2026) - [CVE-2026-115413: AWS API MCP Server OAuth token audience validation bypass](https://junglewise.ai/threats/cve-2026-115413-aws-api-mcp-server-oauth-token-audience-validation-bypass) (high, CVSS 7.8, published 27 Oct 2026) - [CVE-2026-16584: AWS AWS API MCP Server security policy bypass via initialization failure](https://junglewise.ai/threats/cve-2026-16584-aws-aws-api-mcp-server-security-policy-bypass-via-initialization) (high, CVSS 7, published 23 Jul 2026) - [CVE-2026-4270: AWS API MCP Server file access bypass in no-access and workdir features](https://junglewise.ai/threats/cve-2026-4270-aws-api-mcp-server-file-access-bypass-in-no-access-and-workdir) (high, CVSS 5.5, published 16 Mar 2026) ## Most severe AWS API MCP Server vulnerabilities - [CVE-2026-125271: AWS API MCP Server security policy bypass via operation name normalization](https://junglewise.ai/threats/cve-2026-125271-aws-api-mcp-server-security-policy-bypass-via-incorrect) (high, CVSS 7.8, published 10 Nov 2026) - [CVE-2026-115413: AWS API MCP Server OAuth token audience validation bypass](https://junglewise.ai/threats/cve-2026-115413-aws-api-mcp-server-oauth-token-audience-validation-bypass) (high, CVSS 7.8, published 27 Oct 2026) - [CVE-2026-16584: AWS AWS API MCP Server security policy bypass via initialization failure](https://junglewise.ai/threats/cve-2026-16584-aws-aws-api-mcp-server-security-policy-bypass-via-initialization) (high, CVSS 7, published 23 Jul 2026) - [CVE-2026-4270: AWS API MCP Server file access bypass in no-access and workdir features](https://junglewise.ai/threats/cve-2026-4270-aws-api-mcp-server-file-access-bypass-in-no-access-and-workdir) (high, CVSS 5.5, published 16 Mar 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 1 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Other AWS technologies - [AWS Cloud Development Kit](https://junglewise.ai/threats/technologies/cdk): 10 vulnerabilities - [AWS Kiro IDE](https://junglewise.ai/threats/technologies/kiro-ide): 7 vulnerabilities - [AWS-LC](https://junglewise.ai/threats/technologies/lc): 4 vulnerabilities - [Aws-Lc-Sys](https://junglewise.ai/threats/technologies/aws-lc-sys): 3 vulnerabilities - [AWS Babelfish for PostgreSQL](https://junglewise.ai/threats/technologies/babelfish-for-postgresql): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "AWS API MCP Server vulnerabilities", https://junglewise.ai/threats/technologies/api-mcp-server, 10 November 2026.