CVE-2026-97360

CRITICAL 10.0

HFS2 2.4.0 Unauthenticated Arbitrary File Read/Write via Template Engine

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	rejetto
Product	hfs2
Published	Sep 24, 2026
Last Updated	Sep 24, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

rejetto / hfs2

2.0.0 ≤ 2.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/wgetnz/hfs2/blob/master/advisories/hfs2-template-macro-missing-authorization/README.md vulncheck.com: https://www.vulncheck.com/advisories/hfs2-unauthenticated-arbitrary-file-read-write-via-template-engine

Credits

wgetnz VulnCheck