CVE-2026-97359: critical vulnerability in rejetto hfs2
HFS2 2.4.0 RCE via Multipart Upload Filename Template Injection
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
85Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actcvss 10epss 5.5%
from disclosure to weapon
Published on NVDSep 24
VulnCheck+9d
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.
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
Affected products
rejetto · hfs2public PoCs found — 1
cve_referencegithub.com/wgetnz/hfs2/blob/master/advisories/hfs2-upload-filename-template-injection/README.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — rejetto hfs2
In the same product, most dangerous first.