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CVE-2026-3276 Potential DoS via quadratic complexity in unicodedata.normalize()

🗓️ 03 Jun 2026 14:29:39Reported by PSFType 
cvelist
 cvelist
🔗 www.cve.org👁 57 Views

CVE-2026-3276 DoS via quadratic time in normalization with alternating combining classes.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3276
3 Jun 202614:29
attackerkb
Chainguard
CVE-2026-3276 vulnerabilities
16 Jun 202614:17
cgr
Circl
CVE-2026-3276
5 Jun 202613:35
circl
CNNVD
CPython 安全漏洞
3 Jun 202600:00
cnnvd
CVE
CVE-2026-3276
3 Jun 202614:29
cve
Debian CVE
CVE-2026-3276
3 Jun 202614:29
debiancve
EUVD
EUVD-2026-34103
3 Jun 202614:29
euvd
Tenable Nessus
Fedora 43 : python3.13 (2026-2deb979d80)
21 Jun 202600:00
nessus
Tenable Nessus
Fedora 44 : python3-docs / python3.14 (2026-a2c583a4ab)
22 Jun 202600:00
nessus
Tenable Nessus
Fedora 44 : python3.13 (2026-dfc9182263)
21 Jun 202600:00
nessus
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "product": "CPython",
    "repo": "https://github.com/python/cpython",
    "vendor": "Python Software Foundation",
    "versions": [
      {
        "version": "0",
        "lessThan": "3.13.14",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.14.0",
        "lessThan": "3.14.6",
        "status": "affected",
        "versionType": "python"
      },
      {
        "version": "3.15.0a1",
        "lessThan": "3.15.0b2",
        "status": "affected",
        "versionType": "python"
      }
    ]
  }
]

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