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@strands-agents/sdk

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 8.6npmAmendedPublished

    Strands Agents SDK: Exposure of data element to wrong session in the A2A Server

    CVE-2026-115419 · GHSA-4v6f-7vjh-6x4m

    Affected
    • npm @strands-agents/sdk < 1.5.0
    Fixed in
    1.5.0· Vendor fix available
    Issue
    Strands Agents SDK is an open-source SDK, available for Python (strands-agents) and TypeScript (@strands-agents/sdk), for building and running AI agents. An issue exists where, under certain circumstances, the Agent2Agent (A2A) server shares conversation history across callers with different context\id values, allowing one caller to read and influence another caller's session. Impact The A2A server did not properly isolate conversation state between callers. In multi-tenant deployments, an authenticated remote user could access another caller's conversation history or influence model behavior for other callers (CWE-488: Unintended Disclosure of Data Element to Wrong Session). This affects any deployment where an A2A server is reachable by more than one user or tenant. Impacted versions: strands-agents (Python): all versions containing the multiagent.a2a module, < 1.43.0 @strands-agents/sdk (TypeScript): < 1.5.0 Patches This issue has been addressed in strands-agents version…

    Recommended action: Upgrade to 1.5.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.com (1)osv.dev (2)Source checked Evidence →