{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53935",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-11T15:46:12.317Z",
        "datePublished": "2026-07-07T20:44:54.972Z",
        "dateUpdated": "2026-07-08T13:18:09.946Z"
    },
    "containers": {
        "cna": {
            "title": "CiliumLocalRedirectPolicy addressMatcher allows cross-namespace service traffic hijacking and can break service translation",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "ADJACENT_NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "HIGH",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/cilium/cilium/security/advisories/GHSA-q6h5-q3q6-f87x",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/cilium/cilium/security/advisories/GHSA-q6h5-q3q6-f87x"
                },
                {
                    "name": "https://github.com/cilium/cilium/pull/45412",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/cilium/cilium/pull/45412"
                },
                {
                    "name": "https://github.com/cilium/cilium/pull/45584",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/cilium/cilium/pull/45584"
                },
                {
                    "name": "https://github.com/cilium/cilium/pull/45585",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/cilium/cilium/pull/45585"
                },
                {
                    "name": "https://github.com/cilium/cilium/commit/81d446395673dc2c684c047c12715caffac1a351",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/cilium/cilium/commit/81d446395673dc2c684c047c12715caffac1a351"
                },
                {
                    "name": "https://github.com/cilium/cilium/commit/92ca32eda85aa0c7611c28221cc26fa08be17ebc",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/cilium/cilium/commit/92ca32eda85aa0c7611c28221cc26fa08be17ebc"
                },
                {
                    "name": "https://github.com/cilium/cilium/commit/fe7eb53c7aac9fa7ec610b1975d73fbbb198c66d",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/cilium/cilium/commit/fe7eb53c7aac9fa7ec610b1975d73fbbb198c66d"
                }
            ],
            "affected": [
                {
                    "vendor": "cilium",
                    "product": "cilium",
                    "versions": [
                        {
                            "version": "< 1.17.16",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.18.2, < 1.18.10",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.19.0, < 1.19.4",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-07T20:44:54.972Z"
            },
            "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."
                }
            ],
            "source": {
                "advisory": "GHSA-q6h5-q3q6-f87x",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-08T13:17:50.409065Z",
                                "id": "CVE-2026-53935",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-08T13:18:09.946Z"
                }
            }
        ]
    }
}