{
"id": "GHSA-jr9p-r423-9m2r",
"aliases": [
"CVE-2021-26813"
],
"details": "markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.",
"summary": "markdown2 Regular Expression Denial of Service ",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.0.1.18"
},
{
"fixed": "2.4.0"
}
]
}
],
"package": {
"name": "markdown2",
"ecosystem": "PyPI"
}
}
],
"modified": "2024-09-30T20:15:06Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
}
],
"published": "2021-06-02T21:44:28Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26813",
"type": "ADVISORY"
},
{
"url": "https://github.com/trentm/python-markdown2/pull/387",
"type": "WEB"
},
{
"url": "https://github.com/trentm/python-markdown2/commit/7b651260739647de5198323e0445b1618750c374",
"type": "WEB"
},
{
"url": "https://github.com/advisories/GHSA-jr9p-r423-9m2r",
"type": "ADVISORY"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2021-20.yaml",
"type": "WEB"
},
{
"url": "https://github.com/trentm/python-markdown2",
"type": "PACKAGE"
},
{
"url": "https://lists.fedoraproject.org/archives/list/[email protected] /message/BRP5RN35JZTSJ3JT4722F447ZDK7LZS5",
"type": "WEB"
},
{
"url": "https://lists.fedoraproject.org/archives/list/[email protected] /message/J752422YELXLMLZJPVJVKD2KKHHQRVEH",
"type": "WEB"
},
{
"url": "https://lists.fedoraproject.org/archives/list/[email protected] /message/JTIX5UXRDJZJ57DO4V33ZNJTNKWGBQLY",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-1333"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": "2021-03-03T16:15:00Z",
"github_reviewed_at": "2021-05-12T21:02:47Z"
}
}