Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-31890— Inspektor Gadget: Tracing Denial of Service via Event Flooding

Quick assessment

Affected
inspektor-gadget inspektor-gadget
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.

Inspektor Gadget是Inspektor Gadget公司的一套基于 eBPF 的工具和框架。 Inspektor Gadget 0.50.1之前版本存在安全漏洞，该漏洞源于环形缓冲区已满时静默丢弃事件且丢失计数硬编码为零，可能导致恶意事件源引发拒绝服务攻击。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.15% · P3
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-31890

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Inspektor Gadget: Tracing Denial of Service via Event Flooding
Source: CVE Program / CVE List V5
Vulnerability Description
Inspektor Gadget is a set of tools and framework for data collection and system inspection on Kubernetes clusters and Linux hosts using eBPF. Prior to 0.50.1, in a situation where the ring-buffer of a gadget is – incidentally or maliciously – already full, the gadget will silently drop events. The include/gadget/buffer.h file contains definitions for the Buffer API that gadgets can use to, among the other things, transfer data from eBPF programs to userspace. For hosts running a modern enough Linux kernel (>= 5.8), this transfer mechanism is based on ring-buffers. The size of the ring-buffer for the gadgets is hard-coded to 256KB. When a gadget_reserve_buf fails because of insufficient space, the gadget silently cleans up without producing an alert. The lost count reported by the eBPF operator, when using ring-buffers – the modern choice – is hardcoded to zero. The vulnerability can be used by a malicious event source (e.g. a compromised container) to cause a Denial Of Service, forcing the system to drop events coming from other containers (or the same container). This vulnerability is fixed in 0.50.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
安全相关信息的遗漏
Source: CVE Program / CVE List V5
Vulnerability Title
Inspektor Gadget 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Inspektor Gadget是Inspektor Gadget公司的一套基于 eBPF 的工具和框架。 Inspektor Gadget 0.50.1之前版本存在安全漏洞，该漏洞源于环形缓冲区已满时静默丢弃事件且丢失计数硬编码为零，可能导致恶意事件源引发拒绝服务攻击。
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
inspektor-gadget inspektor-gadget < 0.50.1 -

II. Public POCs for CVE-2026-31890

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-31890

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-31890 (1)

IV. Related Vulnerabilities

Same product: inspektor-gadget
Same vendor: inspektor-gadget
Same weakness: CWE-223

V. Comments for CVE-2026-31890

No comments yet

Leave a comment