CVE-2026-97359

Summary

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.

Affected Software

Weaknesses

• CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine

References

• https://github.com/wgetnz/hfs2/blob/master/advisories/hfs2-upload-filename-template-injection/README.md
• https://www.vulncheck.com/advisories/hfs2-rce-via-multipart-upload-filename-template-injection

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