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CVE-2025-32873

CVE-2025-32873

This page contains facts from public vulnerability sources. Check the original advisory before updating.

An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().

CVSS 5.3 · Medium · EPSS 14.3% · Fix available

Published
Updated

Stack: system · python

Affected products and versions

  • django

    Versions
    • ≥ 4.2, < 4.2.21: Affected (custom)
    • ≥ 5.1, < 5.1.9: Affected (custom)
    • ≥ 5.2, < 5.2.1: Affected (custom)

    Update to 4.2.21; Update to 5.1.9; Update to 5.2.1

  • python-django Debian:12

    Versions
    • 3:3.2.19-1
    • 3:3.2.19-1+deb12u1
    • 3:3.2.19-1+deb12u1~bpo11+1
    • 3:3.2.19-1+deb12u2
    • 3:3.2.20-1
    • 3:3.2.20-1.1
    • 3:3.2.21-1
    Affected ranges
    • ECOSYSTEM: < 3:3.2.25-0+deb12u1

    Update to 3:3.2.25-0+deb12u1

  • python-django Debian:13

    Affected ranges
    • ECOSYSTEM: < 3:4.2.21-1

    Update to 3:4.2.21-1

  • python-django Debian:14

    Affected ranges
    • ECOSYSTEM: < 3:4.2.21-1

    Update to 3:4.2.21-1

  • django PyPI

    Versions
    • 4.2
    • 4.2.1
    • 4.2.10
    • 4.2.11
    • 4.2.12
    • 4.2.13
    • 4.2.14
    • 4.2.15
    • 4.2.16
    • 4.2.17
    • 4.2.18
    • 4.2.19
    • 4.2.2
    • 4.2.20
    • 4.2.3
    • 4.2.4
    • 4.2.5
    • 4.2.6
    • 4.2.7
    • 4.2.8
    • 4.2.9
    Affected ranges
    • ECOSYSTEM: ≥ 4.2, < 4.2.21

    Update to 4.2.21

  • django PyPI

    Versions
    • 5.1
    • 5.1.1
    • 5.1.2
    • 5.1.3
    • 5.1.4
    • 5.1.5
    • 5.1.6
    • 5.1.7
    • 5.1.8
    Affected ranges
    • ECOSYSTEM: ≥ 5.1, < 5.1.9

    Update to 5.1.9

  • django PyPI

    Versions
    • 5.2
    Affected ranges
    • ECOSYSTEM: ≥ 5.2, < 5.2.1

    Update to 5.2.1

  • django PyPI

    Versions
    • 4.2
    • 4.2.1
    • 4.2.10
    • 4.2.11
    • 4.2.12
    • 4.2.13
    • 4.2.14
    • 4.2.15
    • 4.2.16
    • 4.2.17
    • 4.2.18
    • 4.2.19
    • 4.2.2
    • 4.2.20
    • 4.2.3
    • 4.2.4
    • 4.2.5
    • 4.2.6
    • 4.2.7
    • 4.2.8
    • 4.2.9
    • 5.1
    • 5.1.1
    • 5.1.2
    • 5.1.3
    • 5.1.4
    • 5.1.5
    • 5.1.6
    • 5.1.7
    • 5.1.8
    • 5.2
    Affected ranges
    • ECOSYSTEM: ≥ 4.2, < 4.2.21 ∪ ≥ 5.1, < 5.1.9 ∪ ≥ 5.2, < 5.2.1

    Update to 4.2.21; Update to 5.1.9; Update to 5.2.1

  • python-django Ubuntu:Pro:14.04:LTS

    Versions
    • 1.5.4-1ubuntu1
    • 1.6-1
    • 1.6.1-1
    • 1.6.1-2
    • 1.6.1-2ubuntu0.1
    • 1.6.1-2ubuntu0.2
    • 1.6.1-2ubuntu0.3
    • 1.6.1-2ubuntu0.4
    • 1.6.1-2ubuntu0.5
    • 1.6.1-2ubuntu0.6
    • 1.6.1-2ubuntu0.8
    • 1.6.1-2ubuntu0.9
    • 1.6.1-2ubuntu0.10
    • 1.6.1-2ubuntu0.11
    • 1.6.1-2ubuntu0.12
    • 1.6.1-2ubuntu0.13
    • 1.6.1-2ubuntu0.14
    • 1.6.1-2ubuntu0.15
    • 1.6.1-2ubuntu0.16
    • 1.6.11-0ubuntu1
    • 1.6.11-0ubuntu1.1
    • 1.6.11-0ubuntu1.2
    • 1.6.11-0ubuntu1.3
    • 1.6.11-0ubuntu1.3+esm1
    • 1.6.11-0ubuntu1.3+esm2
    • 1.6.11-0ubuntu1.3+esm3
    • 1.6.11-0ubuntu1.3+esm4
    • 1.6.11-0ubuntu1.3+esm5
    • 1.6.11-0ubuntu1.3+esm6
    • 1.6.11-0ubuntu1.3+esm7
    • 1.6.11-0ubuntu1.3+esm8
    • 1.6.11-0ubuntu1.3+esm9
    • 1.6.11-0ubuntu1.3+esm10
    • 1.6.11-0ubuntu1.3+esm11
    • 1.6.11-0ubuntu1.3+esm12
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Ubuntu:Pro:16.04:LTS

    Versions
    • 1.7.9-1ubuntu5
    • 1.8.5-2ubuntu1
    • 1.8.7-1ubuntu1
    • 1.8.7-1ubuntu2
    • 1.8.7-1ubuntu3
    • 1.8.7-1ubuntu4
    • 1.8.7-1ubuntu5
    • 1.8.7-1ubuntu5.1
    • 1.8.7-1ubuntu5.2
    • 1.8.7-1ubuntu5.4
    • 1.8.7-1ubuntu5.5
    • 1.8.7-1ubuntu5.6
    • 1.8.7-1ubuntu5.7
    • 1.8.7-1ubuntu5.8
    • 1.8.7-1ubuntu5.9
    • 1.8.7-1ubuntu5.10
    • 1.8.7-1ubuntu5.11
    • 1.8.7-1ubuntu5.12
    • 1.8.7-1ubuntu5.13
    • 1.8.7-1ubuntu5.14
    • 1.8.7-1ubuntu5.15
    • 1.8.7-1ubuntu5.15+esm1
    • 1.8.7-1ubuntu5.15+esm3
    • 1.8.7-1ubuntu5.15+esm4
    • 1.8.7-1ubuntu5.15+esm5
    • 1.8.7-1ubuntu5.15+esm6
    • 1.8.7-1ubuntu5.15+esm7
    • 1.8.7-1ubuntu5.15+esm8
    • 1.8.7-1ubuntu5.15+esm9
    • 1.8.7-1ubuntu5.15+esm10
    • 1.8.7-1ubuntu5.15+esm11
    • 1.8.7-1ubuntu5.15+esm12
    • 1.8.7-1ubuntu5.15+esm13
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Ubuntu:Pro:18.04:LTS

    Versions
    • 1:1.11.4-1ubuntu1
    • 1:1.11.6-1ubuntu1
    • 1:1.11.9-1ubuntu1
    • 1:1.11.11-1ubuntu1
    • 1:1.11.11-1ubuntu1.1
    • 1:1.11.11-1ubuntu1.2
    • 1:1.11.11-1ubuntu1.3
    • 1:1.11.11-1ubuntu1.4
    • 1:1.11.11-1ubuntu1.5
    • 1:1.11.11-1ubuntu1.6
    • 1:1.11.11-1ubuntu1.7
    • 1:1.11.11-1ubuntu1.8
    • 1:1.11.11-1ubuntu1.9
    • 1:1.11.11-1ubuntu1.10
    • 1:1.11.11-1ubuntu1.11
    • 1:1.11.11-1ubuntu1.12
    • 1:1.11.11-1ubuntu1.13
    • 1:1.11.11-1ubuntu1.14
    • 1:1.11.11-1ubuntu1.15
    • 1:1.11.11-1ubuntu1.16
    • 1:1.11.11-1ubuntu1.17
    • 1:1.11.11-1ubuntu1.18
    • 1:1.11.11-1ubuntu1.19
    • 1:1.11.11-1ubuntu1.20
    • 1:1.11.11-1ubuntu1.21
    • 1:1.11.11-1ubuntu1.21+esm1
    • 1:1.11.11-1ubuntu1.21+esm2
    • 1:1.11.11-1ubuntu1.21+esm3
    • 1:1.11.11-1ubuntu1.21+esm4
    • 1:1.11.11-1ubuntu1.21+esm5
    • 1:1.11.11-1ubuntu1.21+esm6
    • 1:1.11.11-1ubuntu1.21+esm7
    • 1:1.11.11-1ubuntu1.21+esm8
    • 1:1.11.11-1ubuntu1.21+esm9
    • 1:1.11.11-1ubuntu1.21+esm10
    Affected ranges
    • ECOSYSTEM: < 1:1.11.11-1ubuntu1.21+esm11

    Update to 1:1.11.11-1ubuntu1.21+esm11

  • python-django Ubuntu:20.04:LTS

    Versions
    • 1:1.11.22-1ubuntu1
    • 2:2.2.6-1ubuntu1
    • 2:2.2.9-2ubuntu1
    • 2:2.2.10-1
    • 2:2.2.10-1ubuntu1
    • 2:2.2.11-1
    • 2:2.2.12-1
    • 2:2.2.12-1ubuntu0.1
    • 2:2.2.12-1ubuntu0.2
    • 2:2.2.12-1ubuntu0.3
    • 2:2.2.12-1ubuntu0.4
    • 2:2.2.12-1ubuntu0.5
    • 2:2.2.12-1ubuntu0.6
    • 2:2.2.12-1ubuntu0.7
    • 2:2.2.12-1ubuntu0.8
    • 2:2.2.12-1ubuntu0.9
    • 2:2.2.12-1ubuntu0.10
    • 2:2.2.12-1ubuntu0.11
    • 2:2.2.12-1ubuntu0.12
    • 2:2.2.12-1ubuntu0.13
    • 2:2.2.12-1ubuntu0.14
    • 2:2.2.12-1ubuntu0.15
    • 2:2.2.12-1ubuntu0.16
    • 2:2.2.12-1ubuntu0.17
    • 2:2.2.12-1ubuntu0.18
    • 2:2.2.12-1ubuntu0.19
    • 2:2.2.12-1ubuntu0.20
    • 2:2.2.12-1ubuntu0.21
    • 2:2.2.12-1ubuntu0.22
    • 2:2.2.12-1ubuntu0.23
    • 2:2.2.12-1ubuntu0.24
    • 2:2.2.12-1ubuntu0.25
    • 2:2.2.12-1ubuntu0.26
    • 2:2.2.12-1ubuntu0.27
    • 2:2.2.12-1ubuntu0.28
    Affected ranges
    • ECOSYSTEM: < 2:2.2.12-1ubuntu0.29

    Update to 2:2.2.12-1ubuntu0.29

  • python-django Ubuntu:22.04:LTS

    Versions
    • 2:2.2.24-1ubuntu1
    • 2:3.2.12-2
    • 2:3.2.12-2ubuntu1
    • 2:3.2.12-2ubuntu1.1
    • 2:3.2.12-2ubuntu1.2
    • 2:3.2.12-2ubuntu1.3
    • 2:3.2.12-2ubuntu1.4
    • 2:3.2.12-2ubuntu1.5
    • 2:3.2.12-2ubuntu1.6
    • 2:3.2.12-2ubuntu1.7
    • 2:3.2.12-2ubuntu1.8
    • 2:3.2.12-2ubuntu1.9
    • 2:3.2.12-2ubuntu1.10
    • 2:3.2.12-2ubuntu1.11
    • 2:3.2.12-2ubuntu1.12
    • 2:3.2.12-2ubuntu1.13
    • 2:3.2.12-2ubuntu1.14
    • 2:3.2.12-2ubuntu1.15
    • 2:3.2.12-2ubuntu1.16
    • 2:3.2.12-2ubuntu1.17
    Affected ranges
    • ECOSYSTEM: < 2:3.2.12-2ubuntu1.18

    Update to 2:3.2.12-2ubuntu1.18

  • python-django Ubuntu:24.04:LTS

    Versions
    • 3:4.2.4-1ubuntu2
    • 3:4.2.8-1
    • 3:4.2.9-1
    • 3:4.2.11-1
    • 3:4.2.11-1ubuntu1
    • 3:4.2.11-1ubuntu1.1
    • 3:4.2.11-1ubuntu1.2
    • 3:4.2.11-1ubuntu1.3
    • 3:4.2.11-1ubuntu1.4
    • 3:4.2.11-1ubuntu1.5
    • 3:4.2.11-1ubuntu1.6
    Affected ranges
    • ECOSYSTEM: < 3:4.2.11-1ubuntu1.7

    Update to 3:4.2.11-1ubuntu1.7

  • python-django Ubuntu:25.10

    Versions
    • 3:4.2.18-1ubuntu1
    Affected ranges
    • ECOSYSTEM: < 3:4.2.18-1ubuntu1.1

    Update to 3:4.2.18-1ubuntu1.1

Original sources

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