CVE-2026-97359

HFS2 version 2.4.0 and earlier contains a template injection vulnerability in the multipart upload handler that allows unauthenticated attackers to achieve remote code execution by embedding malicious template syntax in a filename. Attackers can craft a filename containing a closing template quoting sequence followed by an exec macro, which bypasses the authorization check in the dispatcher to execute arbitrary commands on the underlying host system.

  • Published Sep 24, 2026
  • CVSS 10.0 critical
  • 0.8% chance of exploitation in the next 30 days (EPSS)

Affected software

In the news

CVE-2026-97359 at the National Vulnerability Database