CVE-2026-97359

HFS2 2.4.0 RCE via Multipart Upload Filename Template Injection

Published Sep 24, 2026 CVSS 4.0 · 10 Critical EPSS 5.5% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title HFS2 2.4.0 RCE via Multipart Upload Filename Template Injection
First Time appeared Rejetto
Rejetto hfs2
Weaknesses CWE-1336
CPEs cpe:2.3:a:rejetto:hfs2:*:*:*:*:*:*:*:*
Vendors & Products Rejetto
Rejetto hfs2
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 29, 2026, 2:44 AM
Reserved
Sep 24, 2026, 1:24 PM
Status
Deferred
Published
Sep 24, 2026, 2:18 PM
Modified
Sep 29, 2026, 3:17 AM