CVE-2026-34451
MEDIUM
6,3
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
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.
22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
StableCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Modify Files Or Directories
Read Files Or Directories
Dos: Crash, Exit, Or Restart
Applicable Platforms
Technologies:
AI/ML
41
Improper Resolution of Path Equivalence
IncompleteCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Access Control
Potential Impacts:
Read Files Or Directories
Modify Files Or Directories
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
https://github.com/anthropics/anthropic-sdk-typescript/commit/0ac69b3438ee9c96b…
https://github.com/anthropics/anthropic-sdk-typescript/releases/tag/sdk-v0.81.0
https://github.com/anthropics/anthropic-sdk-typescript/security/advisories/GHSA…