Bulletin ID: 2026-176-AWS
Publication Date: 11/10/2026 08:30 AM PST
Description:
We identified CVE-2026-125271 of AWS API MCP Server. The server normalized operation names incorrectly before comparing them to the operator ' s security policy, so operations whose names contain consecutive capital letters never matched a correctly written denyList or elicitList entry. This might allow an actor to execute AWS API operations that the operator's security policy was configured to deny or require elicitation for.
Impacted versions: >= 0.2.13 AND < 1.5.1
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