In breve
- CVE-2026-34451 è una vulnerabilità MEDIO (CVSS 5.4) che riguarda claude sdk for typescript (anthropic), @anthropic-ai/sdk.
- Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.36%, superiore al 30.1% delle vulnerabilità.
- Correzione: aggiornare a 0.81.0 o successiva.
Description
The local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did not append a trailing path separator. A model steered by prompt injection could supply a crafted path that resolved to a sibling directory sharing the memory root's name as a prefix, allowing reads and writes outside the sandboxed memory directory.
Users on the affected versions are advised to update to the latest version.
Claude SDK for TypeScript thanks hackerone.com/nicksim for reporting this issue!
NVD description
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 0.81.0, the local filesystem memory tool in the Anthropic TypeScript SDK validated model-supplied paths using a string prefix check that did not append a trailing path separator. A model steered by prompt injection could supply a crafted path that resolved to a sibling directory sharing the memory root's name as a prefix, allowing reads and writes outside the sandboxed memory directory. This issue has been patched in version 0.81.0.
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