CVE-2026-115413 - AWS API MCP Server OAuth token audience validation bypass
CVE-2026-115413
Summary
Bulletin ID: 2026-096-AWS
Scope: AWS
Content Type: Important (requires attention)
Publication Date: 09/03/2026 11:00 AM PDT
Description:
The AWS FPGA Developer Kit is a hardware-software development kit that enables developers to create accelerators for the high-performance accelerator cards on EC2 F2 instances.
We identified CVE-2026-85028, where a creation of a temporary file in a directory with insecure permissions in the FPGA management tool installation component in AWS FPGA Development Kit (aws-fpga) before 2.3.4 might allow local users to execute arbitrary code with root privileges via crafted shell content placed at a predictable path in a world-writable temporary directory, which the installation step reads after elevating its own privileges.
Impacted versions: < 2.3.4
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Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Update history
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Updates
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