CVE-2026-97360HFS2 2.4.0 Unauthenticated Arbitrary File Read/Write via Template Engine

Description

HFS2 version 2.4.0 and earlier contains an unauthenticated arbitrary file access vulnerability that allows unauthenticated attackers to read, write, append, and delete files anywhere the HFS service account has filesystem access outside the shared folder. Attackers can exploit the macro dispatcher's lack of authorization model combined with the path resolver's failure to confine absolute paths to manipulate the template engine and compromise the confidentiality, integrity, and availability of the host.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/wgetnz/hfs2/blob/master/advisories/hfs2-template-macro-missing-authorization/README.md technical-descriptionexploit
• VulnCheck Advisory third-party-advisory