{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-41579",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-04-21T14:15:21.958Z",
        "datePublished": "2026-07-01T00:02:08.639Z",
        "dateUpdated": "2026-07-01T13:35:41.354Z"
    },
    "containers": {
        "cna": {
            "title": "runc: Malicious image with /dev symlink can trigger limited host filesystem integrity violations",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-61",
                            "lang": "en",
                            "description": "CWE-61: UNIX Symbolic Link (Symlink) Following",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "NONE",
                        "baseScore": 3.3,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/opencontainers/runc/security/advisories/GHSA-xjvp-4fhw-gc47",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-xjvp-4fhw-gc47"
                },
                {
                    "name": "https://github.com/opencontainers/runc/commit/864db8042dbb",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/opencontainers/runc/commit/864db8042dbb"
                }
            ],
            "affected": [
                {
                    "vendor": "opencontainers",
                    "product": "runc",
                    "versions": [
                        {
                            "version": "< 1.3.6",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.4.0-rc.1, < 1.4.3",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.5.0-rc.1, < 1.5.0-rc.3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-01T00:02:08.639Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "runc is a CLI tool for spawning and running containers according to the OCI specification. In versions prior to 1.3.6, 1.4.0-rc.1, 1.4.0-rc.12, 1.5.0-rc.1, and 1.5.0-rc.1, when setting up the container rootfs, setupPtmx and setupDevSymlinks call os.Remove and os.Symlink with a filepath.Join string which allow an image with /dev as a symlink to trick runc into deleting files called ptmx on the host or creating a hardcoded set of symlinks with specific names and targets in an arbitrary pre-existing host directory. This issue is not exploitable under Docker, because Docker creates a top-level read-only layer that masks any malicious /dev symlink present in the container image — unlike some other Linux container tooling, whose higher-level runtimes built on runc remain exposed to exploitation via a malicious image. This issue has been fixed in versions 1.3.6, 1.4.3 and 1.5.0."
                }
            ],
            "source": {
                "advisory": "GHSA-xjvp-4fhw-gc47",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-01T13:34:05.348945Z",
                                "id": "CVE-2026-41579",
                                "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": "2026-07-01T13:35:41.354Z"
                }
            }
        ]
    }
}