{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-20270",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "python-pygments",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "python-pygments 2.7.4"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-835"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922136"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4889",
                "url": "https://www.debian.org/security/2021/dsa-4889"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210505 [SECURITY] [DLA 2648-1] mediawiki security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210506 [SECURITY] [DLA 2648-2] mediawiki regression update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the \"exception\" keyword."
            }
        ]
    }
}