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CVE-2026-53935

Estado: AplazadaMedia (6.9)—

Cilium is a networking, observability, and security solution. Prior to 1.17.16, from 1.18.2 to 1.18.9, and from 1.19.0 to 1.19.3, users with the ability to create CiliumLocalRedirectPolicies can specify arbitrary ClusterIPs via addressMatcher, enabling hijacking traffic to Services in any namespace and bypassing namespace scoping enforced by serviceMatcher; deleting such a policy can also corrupt Cilium internal service state and stop service translation for the affected Service. This issue is fixed in versions 1.17.16, 1.18.10, and 1.19.4.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Cilium — CiliumAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-53935",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-53935",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-08T13:17:50.409065Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.9,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 1.7
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "cilium",
          "product": "cilium",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.17.16"
            },
            {
              "status": "affected",
              "version": ">= 1.18.2, < 1.18.10"
            },
            {
              "status": "affected",
              "version": ">= 1.19.0, < 1.19.4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-07-07T21:17:27.000",
  "references": [
    {
      "url": "https://github.com/cilium/cilium/commit/81d446395673dc2c684c047c12715caffac1a351",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cilium/cilium/commit/92ca32eda85aa0c7611c28221cc26fa08be17ebc",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cilium/cilium/commit/fe7eb53c7aac9fa7ec610b1975d73fbbb198c66d",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cilium/cilium/pull/45412",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cilium/cilium/pull/45584",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cilium/cilium/pull/45585",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-q6h5-q3q6-f87x",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cilium is a networking, observability, and security solution. Prior to 1.17.16, from 1.18.2 to 1.18.9, and from 1.19.0 to 1.19.3, users with the ability to create CiliumLocalRedirectPolicies can specify arbitrary ClusterIPs via addressMatcher, enabling hijacking traffic to Services in any namespace and bypassing namespace scoping enforced by serviceMatcher; deleting such a policy can also corrupt Cilium internal service state and stop service translation for the affected Service. This issue is fixed in versions 1.17.16, 1.18.10, and 1.19.4."
    }
  ],
  "lastModified": "2026-07-10T17:56:00.910",
  "sourceIdentifier": "security-advisories@github.com"
}