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EUVD-2026-63729

🗓️ 21 Aug 2026 00:31:23Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 6 Views

nltk 3.10.1 TweetTokenizer suffers ReDoS via unbounded URL regex causing exponential backtracking on untrusted input.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-72818
20 Aug 202623:00
circl
cve
CVE
CVE-2026-72818
20 Aug 202621:57
cve
cvelist
Cvelist
CVE-2026-72818 NLTK TweetTokenizer URL Pattern Backtracks Catastrophically on Naked-Domain-Like Input
20 Aug 202621:57
cvelist
nvd
NVD
CVE-2026-72818
20 Aug 202622:18
nvd
ptsecurity
Positive Technologies
PT-2026-79260
20 Aug 202600:00
ptsecurity
[
  {
    "enisaIdVendor": [
      {
        "id": "334f414b-0c4a-3122-830b-0e95ba1dc079",
        "vendor": {
          "name": "nltk"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "37e529e7-95d2-3a8c-828b-9b6add45b6c6",
        "product": {
          "name": "nltk",
          "vendor": {
            "name": "nltk"
          }
        },
        "product_version": "0 <3.10.1"
      }
    ]
  }
]

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21 Aug 2026 00:31Current
5.4Medium risk
Vulners AI Score5.4
CVSS 48.7
CVSS 3.17.5
6