CVE-2026-45390_CVE-2026-45390

{
    "lastseen": "",
    "description": "In OCaml-tar before 3.4.0, a crafted archive with ../ path segments in its name allows escaping the current working directory. This is not desired behavior, and tar(1) rejects such extractions, but ocaml-tar decompresses it anyway. The impact is that it allows arbitrary file writes outside of the desired extraction directory (to an attacker that can reach a tar decompression endpoint).",
    "published": "2026-06-15T00:00:00.000Z",
    "modified": "2026-06-16T14:02:18.195Z",
    "type": "cve",
    "title": "CVE-2026-45390",
    "source": "mitre",
    "references": "https://osv.dev/vulnerability/OSEC-2026-08",
    "id": "CVE-2026-45390",
    "bulletinFamily": "",
    "cwe": [
        "CWE-22"
    ],
    "cvelist": null,
    "sourceData": "n/a n/a n/a",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "OCaml-tar",
    "version": "before 3.4.0",
    "vendor": "OCaml",
    "ai_description": "Arbitrary file writes outside of the desired extraction directory due to crafted archive with ../ path segments",
    "ai_severity": "Critical",
    "ai_vendor": "OCaml",
    "ai_product": "OCaml-tar",
    "ai_version": "before 3.4.0",
    "ai_score": 9.1
}