CVE-2026-18638

Velociraptor server crash via the SetPassword API

State: Published
Severity: 6.5 Medium
Published: Aug 11, 2026
Updated: Aug 11, 2026
Reserved: Aug 3, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	rapid7

Weaknesses

CWE-476 NULL pointer dereference
CWE-703 Improper Check or Handling of Exceptional Conditions

Affected Products

Product	Versions
VelociraptorRapid7	before 0.77.2Affected

References

http://docs.velociraptor.app/announcements/advisories/cve-2026-18638/

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