What’s Vulnerable › Vulnerabilities
CVE-2026-5329: Rapid7 Velociraptor Improper Input Validation in Client Message Handler
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-09 · updated 2026-10-26
- Weakness: CWE-20
Description
Rapid7 Velociraptor versions prior to 0.76.2 contain an improper input validation vulnerability in the client monitoring message handler on the Velociraptor server (primarily Linux) that allows an authenticated remote attacker to write to arbitrary internal server queues via a crafted monitoring message with a malicious queue name. The server handler that receives client monitoring messages does not sufficiently validate the queue name supplied by the client, allowing a rogue client to write arbitrary messages to privileged internal queues. This may lead to remote code execution on the Velociraptor server. Rapid7 Hosted Velociraptor instances are not affected by this vulnerability.
Affected products
- Rapid7 Velociraptor: through 0.75.6; from 0.76 before 0.76.3 — fixed in 0.76.3
How to fix
Upgrade to a fixed version: Rapid7 Velociraptor 0.76.3. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2026-5329 or the next vulnerability affects your stack