CVE-2026-113664: apostrophecms apostrophe Path Traversal

Vulnerability summary

CVE-2026-113664 is a medium (CVSS 5.3) Path Traversal vulnerability in apostrophecms apostrophe. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.5% of scored vulnerabilities.

Timeline

1. 20-10-2026
   PublishedVulnerability first disclosed.

Description

ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.0 of the import-export module, an authenticated importer can submit a tar entry whose normalized destination targets a directory while bypassing the literal parent-path substring guard. Opening that directory as a write stream emits an unhandled filesystem error that can terminate the Node.js process; the source establishes this static primitive but not an end-to-end exploit or controlled arbitrary file read or write. This issue is fixed in version 3.7.0.

• 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.