{"id":"GO-2026-5316","revision":null,"records":[{"revision":"6da9cbf9ab284318ba2a31a2b94bfe88","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-45723","aliases":[],"title":"Omni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematic","description":"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.","state":0,"publishedAt":"2026-09-17T19:39:28.303+00:00","modifiedAt":"2026-09-18T20:13:13.232+00:00","affected":[{"ecosystem":"Vendor product","name":"omni","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"siderolabs\",\n                    \"product\": \"omni\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.7.0, < 1.7.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","score":2.7,"severity":"LOW"}],"references":["https://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5","https://github.com/siderolabs/omni/pull/2817","https://github.com/siderolabs/omni/commit/13c3f289789842e1fd954d98babb34b94eea1192","https://github.com/siderolabs/omni/commit/3e69e80802624bf322f16aa499d5eafca16d0025","https://github.com/siderolabs/omni/commit/9426c2cabccaa1d442bc8ebf28c16cae2d7c6ff7","https://github.com/siderolabs/omni/releases/tag/v1.6.6","https://github.com/siderolabs/omni/releases/tag/v1.7.3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45723","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-45723","identifiers":["CVE-2026-45723"]},"retained":false,"historicalAffected":[]},{"revision":"8627b2e0c0b4478a983898964c9ae7b3","observedAt":"2026-11-11T12:04:16.038+00:00","statement":{"source":"euvd","id":"EUVD-2026-82402","aliases":["CVE-2026-45723","GHSA-c66c-vq6w-fvh5"],"title":"Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. 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This issue is fixed in versions 1.6.6 and 1.7.3.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","score":2.7,"severity":null}],"references":["https://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5","https://github.com/siderolabs/omni/pull/2817","https://github.com/siderolabs/omni/commit/13c3f289789842e1fd954d98babb34b94eea1192","https://github.com/siderolabs/omni/commit/3e69e80802624bf322f16aa499d5eafca16d0025","https://github.com/siderolabs/omni/commit/9426c2cabccaa1d442bc8ebf28c16cae2d7c6ff7","https://github.com/siderolabs/omni/releases/tag/v1.6.6","https://github.com/siderolabs/omni/releases/tag/v1.7.3"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-82402","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 17, 2026, 7:39:28 PM","dateUpdated":"Sep 18, 2026, 8:13:13 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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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.","state":0,"publishedAt":"2026-09-17T20:16:49.347+00:00","modifiedAt":"2026-09-23T18:12:04.247+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","score":2.7,"severity":"LOW"}],"references":["https://github.com/siderolabs/omni/commit/13c3f289789842e1fd954d98babb34b94eea1192","https://github.com/siderolabs/omni/commit/3e69e80802624bf322f16aa499d5eafca16d0025","https://github.com/siderolabs/omni/commit/9426c2cabccaa1d442bc8ebf28c16cae2d7c6ff7","https://github.com/siderolabs/omni/pull/2817","https://github.com/siderolabs/omni/releases/tag/v1.6.6","https://github.com/siderolabs/omni/releases/tag/v1.7.3","https://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45723","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-20","CWE-22","CWE-209","CWE-441","CWE-918"],"productCriteria":[],"sourceDates":{"published":"2026-09-17T20:16:49.347","lastModified":"2026-09-23T18:12:04.247"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-45723","identifiers":["CVE-2026-45723"]},"retained":false,"historicalAffected":[]},{"revision":"6d84c4cb127740cf975d945620f15551","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-c66c-vq6w-fvh5","aliases":["CVE-2026-45723","GO-2026-5316"],"title":"Omni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematic","description":"## Summary\n\n`managementServer.CreateSchematic` (`internal/backend/grpc/schematics.go`) passes the caller-controlled `TalosVersion` field directly to `imageFactoryClient.OverlaysVersions`, which embeds it verbatim into a `fmt.Sprintf(\"/version/%s/overlays/official\", talosVersion)` path template. `url.URL.JoinPath` resolves any `../` sequences in that path, allowing an authenticated Operator to rewrite the URL path and force Omni to issue HTTP GET requests to unintended paths on the configured image-factory server. Error body content from those unintended endpoints is returned to the caller.\n\n## Severity\n\n- **Attack Vector:** Network: exploited via the gRPC `CreateSchematic` API endpoint.\n- **Attack Complexity:** Low: once the attacker holds an Operator credential and has identified a media ID with an overlay, exploitation is a single API call.\n- **Privileges Required:** High: `role.Operator` is required, which has administrative capabilities on Omni.\n- **User Interaction:** None.\n- **Scope:** Unchanged: the traversal is constrained to the configured image-factory host; the attacker cannot redirect Omni to an arbitrary external server.\n- **Confidentiality Impact:** Low: error body content from unintended image-factory endpoints is reflected back to the operator, potentially leaking server-internal information.\n- **Integrity Impact:** None: only HTTP GET requests are issued; no write operations are performed.\n- **Availability Impact:** None.\n\n## Impact\n\n- **Same-host path traversal**: An authenticated Operator can force Omni to issue GET requests to arbitrary URL paths on the configured image-factory server, bypassing the intended versioned overlay API structure.\n- **Error-body disclosure**: HTTP error responses from unintended image-factory endpoints are reflected back to the operator, potentially leaking server-internal diagnostics or sensitive path content.\n- **Internal network probing**: In deployments using a private image-factory instance on an internal network, the attacker can probe endpoint existence and partial responses through error-text differences.\n- **Depth control**: By varying the number of `../` prefixes in `talosVersion`, the attacker can reach any path hierarchy on the image-factory host.\n\n## Credit\nThis vulnerability was discovered and reported by [bugbunny.ai](https://bugbunny.ai).","state":0,"publishedAt":"2026-06-05T15:25:58+00:00","modifiedAt":"2026-06-25T19:56:02.9018261+00:00","affected":[{"ecosystem":"Go","name":"github.com/siderolabs/omni","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.6.6"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/siderolabs/omni","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.7.0"},{"kind":"fixed","version":"1.7.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5","https://github.com/siderolabs/omni","https://github.com/siderolabs/omni/releases/tag/v1.6.6","https://github.com/siderolabs/omni/releases/tag/v1.7.3"],"sourceUrl":"https://github.com/advisories/GHSA-c66c-vq6w-fvh5","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-c66c-vq6w-fvh5","identifiers":["GHSA-c66c-vq6w-fvh5","CVE-2026-45723","GO-2026-5316"]},"retained":false,"historicalAffected":[]},{"revision":"afea21c7554c48e595a2c6965fc3ca40","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-5316","aliases":["CVE-2026-45723","GHSA-c66c-vq6w-fvh5"],"title":"Omni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematic in github.com/siderolabs/omni","description":"Omni: Operator can traverse image-factory API paths via unsanitized `talos_version` in CreateSchematic in github.com/siderolabs/omni","state":0,"publishedAt":"2026-06-25T18:43:19+00:00","modifiedAt":"2026-06-25T19:45:30.5082534+00:00","affected":[{"ecosystem":"Go","name":"github.com/siderolabs/omni","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.6.6"},{"kind":"introduced","version":"1.7.0"},{"kind":"fixed","version":"1.7.3"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5","https://github.com/siderolabs/omni/releases/tag/v1.6.6","https://github.com/siderolabs/omni/releases/tag/v1.7.3"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-5316","license":"OSV · upstream source license applies","key":"osv:GO-2026-5316","identifiers":["GO-2026-5316","CVE-2026-45723","GHSA-c66c-vq6w-fvh5"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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