Vulnerability · Published May 28, 2026 · Assigned by GitHub_M
CVE-2026-45403AnythingLLM: filesystem-copy-file follows nested symlinks and copies files from outside the allowed directory
Low 2.0
In plain English
A low-severity security flaw in anything-llm from Mintplex-Labs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official description
AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to 1.13.0, the AnythingLLM agent filesystem copy tool validates only the top-level source and destination paths. The recursive copy helper then descends into child entries using fs.stat() and copies files with fs.copyFile() without validating each child or rejecting symlinks. Because both APIs follow symlinks, a symlink nested inside an allowed source directory can point outside the allowed filesystem root and cause outside file contents to be copied into an allowed destination as a regular file. This vulnerability is fixed in 1.13.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mintplex-Labs | anything-llm | < 1.13.0 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N