CVE-2026-6948
Received Received - Intake
Resource Exhaustion in Velociraptor Server via Agent Control Channel

Publication date: 2026-05-04

Last updated on: 2026-05-04

Assigner: Rapid7, Inc.

Description
Velociraptor versions prior to 0.76.4 contain a resource exhaustion vulnerability in the server's agent control channel. This allows a compromised or rogue Velociraptor client to crash the server via out-of-memory (OOM) by sending crafted messages through the normal client communication channel.
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Meta Information
Published
2026-05-04
Last Modified
2026-05-04
Generated
2026-06-16
AI Q&A
2026-05-04
EPSS Evaluated
2026-06-14
NVD
CVE-2026-6948
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
velociraptor velociraptor to 0.76.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
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Executive Summary

CVE-2026-6948 is a medium-severity vulnerability in Velociraptor versions prior to 0.76.4 that involves unbounded memory allocation in the VQLResponse result-set writer.

This flaw allows a compromised or rogue Velociraptor client to crash the server by sending specially crafted messages through the normal client communication channel, causing the server to run out of memory (OOM).

Impact Analysis

The primary impact of this vulnerability is on the availability of the Velociraptor server.

An attacker with high privileges can exploit this vulnerability to crash the server by causing an out-of-memory condition, leading to denial of service.

There is no impact on confidentiality or integrity.

Mitigation Strategies

To mitigate this vulnerability, users are advised to upgrade Velociraptor to version 0.76.4 for the 0.76 release or version 0.75.9 for the 0.75 release.

Compliance Impact

The vulnerability primarily impacts the availability of the Velociraptor server by allowing a compromised or rogue client to cause an out-of-memory (OOM) crash. There is no impact on confidentiality or integrity of data.

Since the vulnerability does not affect confidentiality or integrity, it does not directly compromise data protection requirements under standards like GDPR or HIPAA. However, the availability impact could affect service continuity, which may have indirect compliance implications depending on the specific regulatory requirements for system availability and uptime.

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0/70
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