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CVE-2026-115419

8.6 high Awaiting Analysis
NVD · CVE.org

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).

Fix

Vendor advisories in the News 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. StatusPublished → Awaiting AnalysisNVD modified 2026-10-23 17:17
  2. StatusReceived → PublishedNVD modified 2026-10-22 20:04
  3. First seenCVSS 8.6NVD modified 2026-10-22 21:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 4