FKIE_CVE-2026-45723

Vulnerability from fkie_nvd - Published: 2026-09-17 20:16 - Updated: 2026-09-18 21:16
Severity
2.7 (Low) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/siderolabs/omni/commit/13c3f289789842e1fd954d98babb34b94eea1192
security-advisories@github.comhttps://github.com/siderolabs/omni/commit/3e69e80802624bf322f16aa499d5eafca16d0025
security-advisories@github.comhttps://github.com/siderolabs/omni/commit/9426c2cabccaa1d442bc8ebf28c16cae2d7c6ff7
security-advisories@github.comhttps://github.com/siderolabs/omni/pull/2817
security-advisories@github.comhttps://github.com/siderolabs/omni/releases/tag/v1.6.6
security-advisories@github.comhttps://github.com/siderolabs/omni/releases/tag/v1.7.3
security-advisories@github.comhttps://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "omni",
          "vendor": "siderolabs",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.6.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.7.0, \u003c 1.7.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "id": "CVE-2026-45723",
  "lastModified": "2026-09-18T21:16:59.470",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 2.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45723",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-18T20:10:42.448358Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-17T20:16:49.347",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/commit/13c3f289789842e1fd954d98babb34b94eea1192"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/commit/3e69e80802624bf322f16aa499d5eafca16d0025"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/commit/9426c2cabccaa1d442bc8ebf28c16cae2d7c6ff7"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/pull/2817"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/releases/tag/v1.6.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/releases/tag/v1.7.3"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/siderolabs/omni/security/advisories/GHSA-c66c-vq6w-fvh5"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-209"
        },
        {
          "lang": "en",
          "value": "CWE-441"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.