{
    "id": "CVE-2019-13224",
    "published": "2019-07-10 14:15:11",
    "last_modified": "2026-06-17 02:16:19",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-416",
    "description": "A use-after-free in onig_new_deluxe() in regext.c in Oniguruma 6.9.2 allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression. The attacker provides a pair of a regex pattern and a string, with a multi-byte encoding that gets handled by onig_new_deluxe(). Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.",
    "epss_score": "0.04047",
    "epss_percentile": "0.90367",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-08 18:17:21",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "oniguruma_project",
            "product": "oniguruma"
        },
        {
            "vendor": "php",
            "product": "php"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/kkos/oniguruma/commit/0f7f61ed1b7b697e283e37bd2d731d0bd57adb55",
        "https://lists.debian.org/debian-lts-announce/2019/07/msg00013.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW/",
        "https://security.gentoo.org/glsa/201911-03",
        "https://support.f5.com/csp/article/K00103182",
        "https://support.f5.com/csp/article/K00103182?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://usn.ubuntu.com/4088-1/",
        "https://github.com/kkos/oniguruma/commit/0f7f61ed1b7b697e283e37bd2d731d0bd57adb55",
        "https://lists.debian.org/debian-lts-announce/2019/07/msg00013.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW/",
        "https://security.gentoo.org/glsa/201911-03",
        "https://support.f5.com/csp/article/K00103182",
        "https://support.f5.com/csp/article/K00103182?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://usn.ubuntu.com/4088-1/"
    ]
}