What’s Vulnerable › Vulnerabilities
CVE-2026-18638: Velociraptor server crash via the SetPassword API
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-11 · updated 2026-10-23
- Weakness: CWE-476
Description
Any authenticated Velociraptor user — including one holding only the readerrole — can terminate the entire server process with a single request, by calling SetPassword with a username that does not exist.
Affected products
- Rapid7 Velociraptor: before 0.77.2 — fixed in 0.77.2
How to fix
Upgrade to a fixed version: Rapid7 Velociraptor 0.77.2. Check the vendor advisory for mitigations.
References
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