{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-33179",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-03-17T22:16:36.720Z",
        "datePublished": "2026-03-20T20:20:09.171Z",
        "dateUpdated": "2026-03-25T13:55:45.971Z"
    },
    "containers": {
        "cna": {
            "title": "libfuse: NULL Pointer Dereference and Memory Leak in io_uring Queue Initialization",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-476",
                            "lang": "en",
                            "description": "CWE-476: NULL Pointer Dereference",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 5.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/libfuse/libfuse/security/advisories/GHSA-x669-v3mq-r358",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/libfuse/libfuse/security/advisories/GHSA-x669-v3mq-r358"
                },
                {
                    "name": "https://github.com/libfuse/libfuse/commit/7beb86c09b6ec5aab14dc25256ed8a5ad18554d7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/libfuse/libfuse/commit/7beb86c09b6ec5aab14dc25256ed8a5ad18554d7"
                },
                {
                    "name": "https://github.com/libfuse/libfuse/releases/tag/fuse-3.18.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/libfuse/libfuse/releases/tag/fuse-3.18.2"
                }
            ],
            "affected": [
                {
                    "vendor": "libfuse",
                    "product": "libfuse",
                    "versions": [
                        {
                            "version": ">= 3.18.0, < 3.18.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-03-20T20:20:09.171Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "libfuse is the reference implementation of the Linux FUSE. From version 3.18.0 to before version 3.18.2, a NULL pointer dereference and memory leak in fuse_uring_init_queue allows a local user to crash the FUSE daemon or cause resource exhaustion. When numa_alloc_local fails during io_uring queue entry setup, the code proceeds with NULL pointers. When fuse_uring_register_queue fails, NUMA allocations are leaked and the function incorrectly returns success. Only the io_uring transport is affected; the traditional /dev/fuse path is not affected. PoC confirmed with AddressSanitizer/LeakSanitizer. This issue has been patched in version 3.18.2."
                }
            ],
            "source": {
                "advisory": "GHSA-x669-v3mq-r358",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-03-25T13:55:38.887586Z",
                                "id": "CVE-2026-33179",
                                "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": "2026-03-25T13:55:45.971Z"
                }
            }
        ]
    }
}