{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-31133",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-03-26T15:04:52.627Z",
        "datePublished": "2025-11-06T18:47:47.335Z",
        "dateUpdated": "2025-11-06T19:22:22.047Z"
    },
    "containers": {
        "cna": {
            "title": "runc container escape via \"masked path\" abuse due to mount race conditions",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-61",
                            "lang": "en",
                            "description": "CWE-61: UNIX Symbolic Link (Symlink) Following",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-363",
                            "lang": "en",
                            "description": "CWE-363: Race Condition Enabling Link Following",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "HIGH",
                        "baseScore": 7.3,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2"
                },
                {
                    "name": "https://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522"
                },
                {
                    "name": "https://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66"
                },
                {
                    "name": "https://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9f",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9f"
                },
                {
                    "name": "https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64"
                }
            ],
            "affected": [
                {
                    "vendor": "opencontainers",
                    "product": "runc",
                    "versions": [
                        {
                            "version": "< 1.2.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.3.0-rc.1, < 1.3.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.4.0-rc.1, <= 1.4.0-rc.3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-11-06T18:47:47.335Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack:  an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3."
                }
            ],
            "source": {
                "advisory": "GHSA-9493-h29p-rfm2",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-11-06T19:03:45.356326Z",
                                "id": "CVE-2025-31133",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-11-06T19:22:22.047Z"
                }
            }
        ]
    }
}