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Medium

Django denial-of-service in django.utils.html.strip_tags()

  • Disclosed: 06.12.2024
  • Updated: 11.10.2026 15:17

An issue was discovered in Django 5.1 before 5.1.4, 5.0 before 5.0.10, and 4.2 before 4.2.17. The strip_tags() method and striptags template filter are subject to a potential denial-of-service attack via certain inputs containing large sequences of nested incomplete HTML entities.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) django >= 5.1.0, < 5.1.4, >= 4.2.0, < 4.2.17, >= 5.0.0, < 5.0.10, >= 5.1, < 5.1.4, >= 5.0, < 5.0.10, >= 4.2, < 4.2.17 5.1.4, 4.2.17, 5.0.10

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-770
Platform
Python (PyPI)
Package
django
Disclosed
06.12.2024
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2024-156 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-8498-2h75-472j - CC BY 4.0

Vulnerability history: django

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (162) in the archive
Total entries
162
First → latest
10.2007 08.2026
Without a fix
1
Exploited in attacks
0

Severity breakdown

  • Critical 16
  • High 65
  • Medium 63
  • Low 18

Disclosures per year

earlier: 56

Severity:
  1. Django GeoDjango spatial lookups allow file writes and outbound requests through GDAL raster parsing
    High · 8.8 CVE-2026-15307 < 5.2.17, >= 6.0a1, < 6.0.8 5.2.17, 6.0.8
  2. Django vulnerable to ASGI header spoofing via underscore/hyphen conflation
    High · 7.5 CVE-2026-3902 >= 6.0, < 6.0.4, >= 5.2, < 5.2.13, >= 4.2, < 4.2.30 6.0.4, 5.2.13, 4.2.30
  3. Django: SGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit
    High · 7.5 CVE-2026-33034 >= 6.0, < 6.0.4, >= 5.2, < 5.2.13, >= 4.2, < 4.2.30 6.0.4, 5.2.13, 4.2.30
  4. Django vulnerable to Uncontrolled Resource Consumption
    High · 7.5 CVE-2026-25673 >= 6.0, < 6.0.3, >= 5.2, < 5.2.12, >= 4.2, < 4.2.29 6.0.3, 5.2.12, 4.2.29
  5. Django has an SQL Injection issue
    High CVE-2026-1287 >= 6.0a1, < 6.0.2, >= 5.2a1, < 5.2.11, >= 4.2a1, < 4.2.28 6.0.2, 5.2.11, 4.2.28
  6. Django has an SQL Injection issue
    High CVE-2026-1207 >= 6.0a1, < 6.0.2, >= 5.2a1, < 5.2.11, >= 4.2a1, < 4.2.28 6.0.2, 5.2.11, 4.2.28
  7. An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8.
    Critical · 9.1 CVE-2025-64459 >= 4.2, < 4.2.26, >= 5.1, < 5.1.14, >= 5.2, < 5.2.8 4.2.26, 5.1.14, 5.2.8
  8. Django has a denial-of-service vulnerability in HttpResponseRedirect and HttpResponsePermanentRedirect on Windows
    High · 7.5 CVE-2025-64458 >= 5.2a1, < 5.2.8, >= 5.0a1, < 5.1.14, < 4.2.26 5.2.8, 5.1.14, 4.2.26
  9. Django vulnerable to SQL injection in column aliases
    High · 7.1 CVE-2025-59681 >= 4.2, < 4.2.25, >= 5.1, < 5.1.13, >= 5.2, < 5.2.7 4.2.25, 5.1.13, 5.2.7
  10. Django is subject to SQL injection through its column aliases
    High · 7.1 CVE-2025-57833 < 4.2.24, >= 5.0a1, < 5.1.12, >= 5.2a1, < 5.2.6 4.2.24, 5.1.12, 5.2.6
  11. Django SQL injection in HasKey(lhs, rhs) on Oracle
    High · 9.8 CVE-2024-53908 >= 5.0.0, < 5.0.10, >= 5.1.0, < 5.1.4, >= 4.2.0, < 4.2.17, >= 5.1, < 5.1.4, >= 5.0, < 5.0.10, >= 4.2, < 4.2.17 5.0.10, 5.1.4, 4.2.17
  12. Django denial-of-service in django.utils.html.strip_tags() this entry
    Medium · 7.5 CVE-2024-53907 >= 5.1.0, < 5.1.4, >= 4.2.0, < 4.2.17, >= 5.0.0, < 5.0.10, >= 5.1, < 5.1.4, >= 5.0, < 5.0.10, >= 4.2, < 4.2.17 5.1.4, 4.2.17, 5.0.10
  13. An issue was discovered in Django 5.0 before 5.0.8 and 4.2 before 4.2.15. QuerySet.values() and values_list() methods on models with a JSONField are subject to SQL injection in column aliases via a cr
    Critical · 9.1 CVE-2024-42005 >= 5.0, < 5.0.8, >= 4.2, < 4.2.15 5.0.8, 4.2.15
  14. Django vulnerable to Denial of Service
    High · 7.5 CVE-2024-39614 >= 5.0, < 5.0.7, >= 4.2, < 4.2.14 5.0.7, 4.2.14
  15. Django Path Traversal vulnerability
    High · 7.5 CVE-2024-39330 >= 5.0, < 5.0.7, >= 4.2, < 4.2.14 5.0.7, 4.2.14
  16. Django vulnerable to Denial of Service
    High · 7.5 CVE-2024-38875 >= 4.2, < 4.2.14, >= 5.0, < 5.0.7 4.2.14, 5.0.7
  17. Django denial-of-service attack in the intcomma template filter
    High · 5.9 CVE-2024-24680 >= 3.2, < 3.2.24, >= 4.2, < 4.2.10, >= 5.0, < 5.0.2 3.2.24, 4.2.10, 5.0.2
  18. In Django 3.2 before 3.2.22, 4.1 before 4.1.12, and 4.2 before 4.2.6, the django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of s
    High · 5.9 CVE-2023-43665 >= 3.2, < 3.2.22, >= 4.1, < 4.1.12, >= 4.2, < 4.2.6 3.2.22, 4.1.12, 4.2.6
  19. An issue was discovered in Django 3.2 before 3.2.23, 4.1 before 4.1.13, and 4.2 before 4.2.7. The NFKC normalization is slow on Windows. As a consequence, django.contrib.auth.forms.UsernameField is su
    High · 7.5 CVE-2023-46695 >= 3.2, < 3.2.23, >= 4.1, < 4.1.13, >= 4.2, < 4.2.7 3.2.23, 4.1.13, 4.2.7
  20. In Django 3.2 before 3.2.20, 4 before 4.1.10, and 4.2 before 4.2.3, EmailValidator and URLValidator are subject to a potential ReDoS (regular expression denial of service) attack via a very large numb
    High · 7.5 CVE-2023-36053 >= 4.2, < 4.2.3, >= 4.0, < 4.1.10, >= 3.2, < 3.2.20 4.2.3, 4.1.10, 3.2.20
Show more (20) Showing 20 of 82

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