CVE-2025-59836: github.com/siderolabs/omni · Omni is Vulnerable to DoS via Empty Create/Update Resource Requests
Affects github.com/siderolabs/omniSource GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 1.1.5 when convenient.
Data as of 4 Nov 2026, 18:23 UTC
- Patch
- Available – fixed in 1.1.5, 1.0.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 13 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Upgrade github.com/siderolabs/omni to 1.1.5; github.com/siderolabs/omni to 1.0.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Gogithub.com/siderolabs/omni | Affected
| Fixed in
|
| Gogithub.com/siderolabs/omni | Affected
| Fixed in
|
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AI-suggested
A patch is available in versions 1.1.5 and 1.0.2 that adds nil checks on the resource and its Metadata field in the isSensitiveSpec function to prevent the nil pointer dereference. Users should upgrade to these fixed versions to remediate the issue. No additional mitigation is required if the patch is applied.
Description
CVE-2025-59836 is a denial of service vulnerability in the Omni Resource Service caused by a nil pointer dereference. Unauthenticated users can trigger a server panic by sending empty create or update resource requests to the API endpoints. The root cause is missing nil checks on the resource's Metadata field before accessing its Version property, leading to a segmentation fault and server crash.
References
- github.com/siderolabs/omni/security/advisories/GHSA-4p3p-cr38-v5xp (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2025-59836 (opens in a new tab)
- github.com/siderolabs/omni/commit/1396083f766a1b0380e9949968d7fc17b7afecaa (opens in a new tab)
- github.com/siderolabs/omni/commit/1fd954af64985a8b3dbf5b11deddbf7cd953f5ae (opens in a new tab)
- github.com/siderolabs/omni (opens in a new tab)
- pkg.go.dev/vuln/GO-2025-4021 (opens in a new tab)