CVE-2026-6815: casbin casdoor Path Traversal

Vulnerability summary

CVE-2026-6815 is a medium (CVSS 5.9) Path Traversal vulnerability in casbin casdoor. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 11-05-2026
   PublishedVulnerability first disclosed.
2. 13-05-2026
   Last modifiedVulnerability information updated.

Description

An arbitrary file write vulnerability exists in Casdoor's Local File System storage provider. Due to insufficient path sanitization, an authenticated attacker with administrative privileges can perform a Path Traversal attack to create or overwrite arbitrary files anywhere on the host filesystem, bypassing the application's intended storage sandbox.

• 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.