CVE-2024-28088: langchain Path Traversal

Vulnerability summary

CVE-2024-28088 is a high (CVSS 8.1) Path Traversal vulnerability in langchain. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.3% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 03-03-2024
   PublishedVulnerability first disclosed.
2. 26-08-2024
   Last modifiedVulnerability information updated.

Description

LangChain through 0.1.10 allows ../ directory traversal by an actor who is able to control the final part of the path parameter in a load_chain call. This bypasses the intended behavior of loading configurations only from the hwchase17/langchain-hub GitHub repository. The outcome can be disclosure of an API key for a large language model online service, or remote code execution. (A patch is available as of release 0.1.29 of langchain-core.)

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
• CWE-31Path Traversal: 'dir\..\..\filename'The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize 'dir\..\..\filename' (multiple internal backslash dot dot) sequences that can resolve to a location that is outside of that directory.