Answer in brief
CVE-2026-45723 records a Low severity vulnerability in Omni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematic. The current sources do not mark it as known exploited. The current feed maps siderolabs/omni (generic), github.com/siderolabs/omni (go), github.com/siderolabs/omni (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps siderolabs/omni (generic), github.com/siderolabs/omni (go), github.com/siderolabs/omni (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| siderolabs/omnigeneric | < 1.6.6 || >= 1.7.0, < 1.7.3 | Not reported |
| github.com/siderolabs/omnigo | <1.6.6 | 1.6.6 |
| github.com/siderolabs/omnigo | >=1.7.0,<1.7.3 | 1.7.3 |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 11, 2026
Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. Prior to 1.6.6 and 1.7.3, managementServer.CreateSchematic in internal/backend/grpc/schematics.go passes the caller-controlled TalosVersion field to imageFactoryClient.OverlaysVersions without validating it as a version. An authenticated Operator can submit traversal segments in TalosVersion, and url.URL.JoinPath normalizes them into unintended paths on the configured image-factory host. Omni then issues HTTP GET requests to those paths and reflects error-body content, enabling same-host endpoint probing and possible disclosure of internal diagnostics while preventing redirection to another host or write requests. This issue is fixed in versions 1.6.6 and 1.7.3.
Quoted source text, attributed separately from HOL analysis.