EUVD-2021-0147

🗓️ 07 Oct 2025 00:30:54Reported by EUVDType

nltk is vulnerable to Inefficient Regular Expression Complexity in the EUVD-2021-0147 document.

Reporter	Title	Published	Views	Family All 34
Circl	CVE-2021-3828	27 Sep 202116:34	–	circl
CNNVD	Nltk 代码问题漏洞	27 Sep 202100:00	–	cnnvd
CVE	CVE-2021-3828	27 Sep 202112:25	–	cve
Cvelist	CVE-2021-3828 Inefficient Regular Expression Complexity in nltk/nltk	27 Sep 202112:25	–	cvelist
Huntr	Inefficient Regular Expression Complexity in nltk/nltk	19 Sep 202119:26	–	huntr
Debian CVE	CVE-2021-3828	27 Sep 202112:25	–	debiancve
Github Security Blog	NLTK Vulnerable to REDoS	29 Sep 202117:14	–	github
Mageia	Updated python-nltk package fixes a security vulnerability	25 Oct 202318:17	–	mageia
NVD	CVE-2021-3828	27 Sep 202113:15	–	nvd
OPENSUSE Linux	Security update for python-nltk (moderate)	3 Jul 202200:00	–	opensuse

[
  {
    "enisaIdVendor": [
      {
        "id": "a89d5527-8e94-34ea-8604-fdb2a8418ddb",
        "vendor": {
          "name": "nltk"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "f8135aa7-ccb3-36ab-93dd-21f2509c2e3b",
        "product": {
          "name": "nltk/nltk"
        },
        "product_version": "unspecified ≤3.6.3"
      }
    ]
  }
]

Source	Link
huntr	www.huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32
github	www.github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6
github	www.github.com/advisories/GHSA-2ww3-fxvq-293j
nvd	www.nvd.nist.gov/vuln/detail/CVE-2021-3828
github	www.github.com/nltk/nltk/pull/2816
github	www.github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2021-356.yaml
suse	www.suse.com/security/cve/CVE-2021-3828.html
security	www.security.archlinux.org/CVE-2021-3828
ubuntu	www.ubuntu.com/security/CVE-2021-3828
github	www.github.com/advisories/GHSA-293c-r3p4-g63r

07 Oct 2025 00:30Current

7.4High risk

Vulners AI Score7.4

CVSS 37.5

CVSS 25

CVSS 3.17.5

EPSS0.00433