CVE-2026-12957 and CVE-2026-12958 - Issues in Language Servers for AWS and Amazon Q Developer Plugins (opens in new tab)

Bulletin ID: 2026-047-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 06/23/2026 09:30 AM PDT Description: Language Servers for AWS provide the underlying language-server runtime that powers Amazon Q Developer's AI coding assistance across its IDE plugins (Visual Studio Code, JetBrains, Eclipse, and Visual Studio). We identified CVE-2026-12957, an improper trust boundary enforcement issue in Language Servers for AWS before version 1.65.0. If a local user opens a ...