CVE-2026-97360: Missing Authorization in rejetto hfs2
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.
AI Analysis
Technical Summary
The vulnerability in rejetto hfs2 versions 2.4.0 and earlier arises from the macro dispatcher's lack of an authorization model combined with the path resolver's failure to confine absolute paths. This allows unauthenticated attackers to manipulate the template engine to access and modify files anywhere the HFS service account has filesystem permissions, beyond the intended shared folder boundaries. The flaw enables arbitrary file read, write, append, and delete operations, severely impacting the host's security.
Potential Impact
Exploitation of this vulnerability allows unauthenticated attackers to compromise the confidentiality, integrity, and availability of the affected host by accessing and modifying arbitrary files outside the shared folder. This can lead to unauthorized data disclosure, data tampering, and potential service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the HFS service and monitor for unauthorized activity. Avoid exposing the service to untrusted networks.
CVE-2026-97360: Missing Authorization in rejetto hfs2
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.
CVSS v4.0
Score 10.0critical
Affected software
rejetto
hfs2
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in rejetto hfs2 versions 2.4.0 and earlier arises from the macro dispatcher's lack of an authorization model combined with the path resolver's failure to confine absolute paths. This allows unauthenticated attackers to manipulate the template engine to access and modify files anywhere the HFS service account has filesystem permissions, beyond the intended shared folder boundaries. The flaw enables arbitrary file read, write, append, and delete operations, severely impacting the host's security.
Potential Impact
Exploitation of this vulnerability allows unauthenticated attackers to compromise the confidentiality, integrity, and availability of the affected host by accessing and modifying arbitrary files outside the shared folder. This can lead to unauthorized data disclosure, data tampering, and potential service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the HFS service and monitor for unauthorized activity. Avoid exposing the service to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-24T13:29:26.913Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab52a4af7a7c5410662664c
Added to database: 09/24/2026, 13:48:58 UTC
Last enriched: 09/24/2026, 14:02:44 UTC
Last updated: 09/25/2026, 02:07:24 UTC
Views: 12
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