CVE-2026-6948— Unbounded Memory Allocation in VQLResponse Result-Set Writer
Quick assessment
Affected
Rapid7 Velociraptor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Velociraptor是Velocidex开源的一种使用 Velociraptor 查询语言（VQL）查询收集基于主机的状态信息的工具。 Velociraptor 0.76.4之前版本存在安全漏洞，该漏洞源于服务器代理控制通道存在资源耗尽问题，可能导致被攻陷或恶意的客户端通过正常通信通道发送特制消息导致服务器因内存耗尽而崩溃。
Possible ATT&CK Techniques 1 AI
T1496 · Resource HijackingAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Rapid7 | Velociraptor | < 0.76.4 |
affected |
< 0.75.9 |
affected |
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I. Basic Information for CVE-2026-6948
Vulnerability Information
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Vulnerability Title
Unbounded Memory Allocation in VQLResponse Result-Set Writer
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Velociraptor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Velociraptor是Velocidex开源的一种使用 Velociraptor 查询语言（VQL）查询收集基于主机的状态信息的工具。 Velociraptor 0.76.4之前版本存在安全漏洞，该漏洞源于服务器代理控制通道存在资源耗尽问题，可能导致被攻陷或恶意的客户端通过正常通信通道发送特制消息导致服务器因内存耗尽而崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Rapid7 | Velociraptor | 0 ~ 0.76.4 | - |
|
II. Public POCs for CVE-2026-6948
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-6948 (1)
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V. Comments for CVE-2026-6948
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