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High 7.1
Strands Agents: Local Privilege Escalation via Symlink Attack in Default Session File Storage
## Summary The `FileSessionManager` defaults to storing session data in `/tmp/strands/sessions/` (a world-writable directory) using predictable file paths and a write pattern (`open(path + ".tmp", "w")` → `os.replace()`) that follows symbolic links. A local a…
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Medium —
Strands Agents: Default FileSessionManager storage is world-readable on shared systems
There is a local confidentiality issue in the default `FileSessionManager` storage behavior. By default it writes session data under `/tmp/strands/sessions` and relies on the process umask for directory and file permissions. On systems using the common `umask…
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High 8.1
Unintended disclosure of data element to wrong session in Strands Agents SDK A2A Server
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' conve…