CVE catalog
CVE-2026-41686
Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.91.1, the BetaLocalFilesystemMemoryTool in t
- Severity
- Medium · CVSS 4.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.12% · Oct 25, 2026
Claude SDK for TypeScript provides access to the Claude API from server-side TypeScript or JavaScript applications. From version 0.79.0 to before version 0.91.1, the BetaLocalFilesystemMemoryTool in the Anthropic TypeScript SDK created memory files and directories using the Node.js default modes (0o666 for files, 0o777 for directories), leaving them world-readable on systems with a standard umask and world-writable in environments with a permissive umask such as many Docker base images. A local attacker on a shared host could read persisted agent state, and in containerized deployments could modify memory files to influence subsequent model behavior. This issue has been patched in version 0.91.1.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | claude_sdk_for_typescript | Not reported | 0.91.1 | fixed |
| Npm | @anthropic-ai/sdk | Not reported | 0.91.1 | fixed |
| Cpe | claude_sdk_for_typescript | Not reported | 0.91.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | claude_sdk_for_typescript | cpe | Not reported | 0.91.1 | Not reported | Not reported | Not reported |
| Npm | @anthropic-ai/sdk | npm | Not reported | 0.91.1 | Not reported | GHSA-P7FG-763F-G4GF | Not reported |
| Cpe | claude_sdk_for_typescript | cpe | Not reported | 0.91.1 | Not reported | NVD-CVE-2026-41686 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: