CVE-2026-17535 Velociraptor Multiple Crashes in NTFS Parser when applied to invalid NTFS Volumes
Attackers can cause denial of service in Velociraptor by providing maliciously crafted NTFS images during dead disk forensics operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-17535?
CVE-2026-17535 is a medium-severity denial of service vulnerability in Rapid7 Velociraptor, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Velociraptor's NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.
Typically Velociraptor's NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g. dead disk forensics https://docs.velociraptor.app/docs/forensic/deaddisk/ ) Velociraptor may be used on untrusted NTFS image files.
If an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service.
Which versions are affected by CVE-2026-17535?
How do I fix CVE-2026-17535?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-17535 being exploited?
There is no known exploitation of CVE-2026-17535 in the wild and no public exploit code.
Sources
Also known as GHSA-46vh-7xwv-8rrp.