{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-42497",
        "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "state": "PUBLISHED",
        "assignerShortName": "CPANSec",
        "dateReserved": "2026-04-27T18:34:48.417Z",
        "datePublished": "2026-05-26T00:17:50.656Z",
        "dateUpdated": "2026-05-28T13:14:01.484Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://cpan.org/modules",
                    "defaultStatus": "unaffected",
                    "packageName": "Archive-Tar",
                    "product": "Archive::Tar",
                    "programFiles": [
                        "lib/Archive/Tar.pm"
                    ],
                    "programRoutines": [
                        {
                            "name": "Archive::Tar::_make_special_file"
                        },
                        {
                            "name": "Archive::Tar::_extract_file"
                        }
                    ],
                    "repo": "https://github.com/jib/archive-tar-new",
                    "vendor": "BINGOS",
                    "versions": [
                        {
                            "lessThan": "3.08",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory.\n\n_make_special_file() passes the tar header's linkname to link() without validating it against absolute paths or .. segments, creating a hardlink that shares the victim file's inode.\n\nA subsequent write through the extracted name modifies the victim file, and the post-extraction chmod, chown, and utime block in _extract_file() (guarded only against symlinks via -l) applies the tar header's mode, owner, and timestamps to the shared inode during extraction alone."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-59",
                            "description": "CWE-59 Improper Link Resolution Before File Access ('Link Following')",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-732",
                            "description": "CWE-732 Incorrect Permission Assignment for Critical Resource",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
                "shortName": "CPANSec",
                "dateUpdated": "2026-05-26T00:17:50.656Z"
            },
            "references": [
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch"
                },
                {
                    "tags": [
                        "release-notes"
                    ],
                    "url": "https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://www.cve.org/CVERecord?id=CVE-2026-42496"
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Upgrade to Archive::Tar 3.08 or later."
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "timeline": [
                {
                    "lang": "en",
                    "time": "2026-04-12T00:00:00.000Z",
                    "value": "Issue reported."
                },
                {
                    "lang": "en",
                    "time": "2026-05-10T00:00:00.000Z",
                    "value": "Version 3.06 released, disabling hardlink extraction by default."
                },
                {
                    "lang": "en",
                    "time": "2026-05-22T00:00:00.000Z",
                    "value": "Version 3.08 released."
                }
            ],
            "title": "Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory",
            "x_generator": {
                "engine": "cpansec-cna-tool 0.1"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 7.5,
                            "attackVector": "NETWORK",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-28T13:13:55.750345Z",
                                "id": "CVE-2026-42497",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "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": "2026-05-28T13:14:01.484Z"
                }
            }
        ]
    }
}