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高 8.6

Unintended disclosure of data element to wrong session in Strands Agents SDK A2A Server

CVE-2026-115419 SecPulse初出

概要

The A2A server component in Amazon Strands Agents SDK for Python before 1.43.0 and Amazon Strands Agents SDK for TypeScript before 1.5.0 does not properly isolate conversation state between callers. An authenticated remote user could read other tenants' conversation history and add persistent instru...

影響パッケージ

種類パッケージ影響を受ける版直った版
AWS strands-agents
1.43.0 未満
1.43.0
AWS strands-agents/sdk
1.5.0 未満
1.5.0
原文の説明 取得元が公開している説明をそのまま載せています (多くは英語)。

The A2A server component in Amazon Strands Agents SDK for Python before 1.43.0 and Amazon Strands Agents SDK for TypeScript before 1.5.0 does not properly isolate conversation state between callers. An authenticated remote user could read other tenants' conversation history and add persistent instructions that alter model behavior for subsequent callers via HTTP requests to the A2A endpoint using a different context_id.

To mitigate this issue, users should upgrade to strands-agents 1.43.0 (Python) or @strands-agents/sdk 1.5.0 (TypeScript).

出典: CVE.org (CVE Program・cvelistV5) NVD

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