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TI-2025-37275 Aliases CVE-2025-59836GHSA-4p3p-cr38-v5xp

Omni is Vulnerable to DoS via Empty Create/Update Resource Requests

Priority HIGH 72CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00582 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed omni (siderolabs): 1.1.5, 1.0.2github.com/siderolabs/omni (Go): 1.1.5, 1.0.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
siderolabsomni1.1.0-beta.0 to before 1.1.5; before 1.0.21.1.5, 1.0.2Patch availableCNA
—github.com/siderolabs/omni (Go)1.1.0-beta.0 to before 1.1.51.1.5Patch availableGHSA-4p3p-cr38-v5xp
—github.com/siderolabs/omni (Go)before 1.0.21.0.2Patch availableGHSA-4p3p-cr38-v5xp
  • omni Vendorsiderolabs Affected 1.1.0-beta.0 to before 1.1.5; before 1.0.2 Fixed in 1.1.5, 1.0.2 Patch available CNA
  • github.com/siderolabs/omni (Go) Vendor— Affected 1.1.0-beta.0 to before 1.1.5 Fixed in 1.1.5 Patch available GHSA-4p3p-cr38-v5xp
  • github.com/siderolabs/omni (Go) Vendor— Affected before 1.0.2 Fixed in 1.0.2 Patch available GHSA-4p3p-cr38-v5xp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:siderolabs:omni:*:*:*:*:*:kubernetes:*:*before 1.0.2; 1.1.0 to before 1.1.5Vulnerablesiderolabs
  • cpe:2.3:a:siderolabs:omni:*:*:*:*:*:kubernetes:*:* Versions before 1.0.2; 1.1.0 to before 1.1.5 Vulnerable ·siderolabs

Remediation

  • Fix · CNA omni (siderolabs) Fixed in 1.1.5, 1.0.2
  • Fix · GHSA-4p3p-cr38-v5xp github.com/siderolabs/omni (Go) Fixed in 1.1.5 Advisory →
  • Fix · GHSA-4p3p-cr38-v5xp github.com/siderolabs/omni (Go) Fixed in 1.0.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-59836
  2. 2026-10-03 Alias added: GHSA-4p3p-cr38-v5xp

References

Exploit 1

Patch 2

Advisory 1

Other 2

  • TI-2025-38119 Omni leaks information via the API CVSS 3.1HIGH 8.6
  • TI-2025-37263 Omni Wireguard SideroLink potential escape CVSS 4.0LOW 0.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences