CVE-2026-34450

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the local filesystem memory tool in the Anthropic Python SDK created memory files with mode 0o666, leaving them world-readable on systems with a standard umask and...

Incorrect Permission Assignment for Critical Resource

Overview anthropic is a The official Python library for the anthropic API Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource in the local filesystem memory tool due to files being created with overly permissive permissions. An attacker can...

CVE-2026-34452

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then...

CVE-2026-34450

The Claude SDK for Python (Anthropic) suffers a local-file-permission issue in its local filesystem memory tool: versions 0.86.0 up to before 0.87.0 create memory files with mode 0o666, making them world-readable on typical umasks and world-writable on permissive Docker images. A local attacker o...

CVE-2026-34450 Claude SDK for Python: Insecure Default File Permissions in Local Filesystem Memory Tool

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the local filesystem memory tool in the Anthropic Python SDK created memory files with mode 0o666, leaving them world-readable on systems with a standard umask and...

CVE-2026-34452 Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then...

CVE-2026-34452

CVE-2026-34452 (Claude SDK for Python) affects the async local filesystem memory tool in the Anthropic Python SDK. From versions 0.86.0 up to before 0.87.0, path validation incorrectly allowed union of model-supplied paths to be validated inside the sandbox but the unresolved path to be used for ...

CVE-2026-34452 Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then...

PT-2026-29380

The Claude SDK for Python provides access to the Claude API from Python applications. From version 0.86.0 to before version 0.87.0, the async local filesystem memory tool in the Anthropic Python SDK validated that model-supplied paths resolved inside the sandboxed memory directory, but then...