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CVE-2025-59836— Omni is Vulnerable to DoS via Empty Create/Update Resource Requests

Quick assessment

Affected
siderolabs omni
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.

omni是Sidero Labs, Inc.开源的一个Kubernetes的部署工具。 Omni 1.1.5之前版本和1.0.2之前版本存在安全漏洞，该漏洞源于isSensitiveSpec函数未检查resource的metadata字段是否为空，可能导致空指针取消引用和拒绝服务。

CVSS 5.3 · Medium EPSS 0.58% · P47

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-59836

Vulnerability Information
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Vulnerability Title
Omni is Vulnerable to DoS via Empty Create/Update Resource Requests
Source: CVE Program / CVE List V5
Vulnerability Description
Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. Prior to 1.1.5 and 1.0.2, there is a nil pointer dereference vulnerability in the Omni Resource Service allows unauthenticated users to cause a server panic and denial of service by sending empty create/update resource requests through the API endpoints. The vulnerability exists in the isSensitiveSpec function which calls grpcomni.CreateResource without checking if the resource's metadata field is nil. When a resource is created with an empty Metadata field, the CreateResource function attempts to access resource.Metadata.Version causing a segmentation fault. This vulnerability is fixed in 1.1.5 and 1.0.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件检查或处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Omni 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
omni是Sidero Labs, Inc.开源的一个Kubernetes的部署工具。 Omni 1.1.5之前版本和1.0.2之前版本存在安全漏洞，该漏洞源于isSensitiveSpec函数未检查resource的metadata字段是否为空，可能导致空指针取消引用和拒绝服务。
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
siderolabs omni >= 1.1.0-beta.0, < 1.1.5 -

II. Public POCs for CVE-2025-59836

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III. Intelligence Information for CVE-2025-59836

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Patches & Fixes for CVE-2025-59836 (2)

Vendor Advisories for CVE-2025-59836 (1)

IV. Related Vulnerabilities

Same product: omni
Same vendor: siderolabs
Same weakness: CWE-703

V. Comments for CVE-2025-59836

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