CVE-2025-59836: Omni manages Kubernetes on bare metal, virtual machines, or in a cloud

This week

MEDIUM 5.3REMOTEWATCHLISTUPGRADE

CVE-2025-59836 is a medium-severity flaw (CVSS 5.3) affecting omni. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 resour

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-476, CWE-703
Published	2025-10-13
Last modified	2026-10-08

Publisher (CNA): GitHub, Inc. · Vendor: siderolabs

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-10-13 21:15 UTCPublished CVE record published
2026-10-08 12:10 UTCUpdated Record last modified

siderolabs omni UPGRADE

Affected: < 1.0.2 · >= 1.1.0 and < 1.1.5

Fixed in: 1.0.2, 1.1.5

Safe to downgrade to: a release before 1.1.0

1. Check installed version

apt-cache policy omni || rpm -q omni || omni --version

2. UPGRADE to 1.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade omni

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade omni

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison omni sudo apt install omni=<VERSION_BEFORE_1.1.0> sudo apt-mark hold omni

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list omni sudo dnf downgrade omni-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add omni

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-59836?

omni: upgrade to 1.0.2, 1.1.5. Exact commands for each OS are on this page.

Is CVE-2025-59836 being exploited?

CVE-2025-59836 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-59836 affect?

CVE-2025-59836 affects omni. Severity is medium (CVSS 5.3). 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

How urgent is CVE-2025-59836?

Priority 45/100. Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Kubernetes vulnerabilities

Related CVEs

CVE-2025-61688 HIGH 8.6 UPGRADE Omni manages Kubernetes on bare metal, virtual machines, or in a cloud
CVE-2025-59824 MEDIUM 5.4 UPGRADE Omni manages Kubernetes on bare metal, virtual machines, or in a cloud

References

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