by Kastro
Paper/Archive/CVE-2026-97360

CVE-2026-97360

rejetto hfs2 — HFS2 2.4.0 Unauthenticated Arbitrary File Read/Write via Template Engine

EPSS 0.4%public exploitCVSS 10.0
critical.is priorityof 100
48
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 38.0.380 × 207.6Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
hfs22.0.0 – 2.4.0–CNA

Scores by source

VulnCheck (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
VulnCheck (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/wgetnz/hfs2/blob/master/advisories/hfs2-template-macro-missing-authorization/README.mdwriteupvulncheck.com/advisories/hfs2-unauthenticated-arbitrary-file-read-write-via-template-engine