p PatchFirst

CVE-2026-15337

CVE-2026-15337 · Potential denial-of-service vulnerability in check_for_language()

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

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. `django.utils.translation.check_for_language()` is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. Such codes reach the function through the `django.views.i18n.set_language()` view, which is not routed by default. The consumed memory is bounded, since request data is limited by the `DATA_UPLOAD_MAX_MEMORY_SIZE` setting (default 2.5 MB) and the cache holds a fixed maximum number of entries. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Jaeyoung Jang for reporting this issue.

CVSS 6.9 · Medium · EPSS 0.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • django

    Versions
    • ≥ 6.0, < 6.0.8: Affected (python)
    • 6.0.8: Not affected (python)
    • ≥ 5.2, < 5.2.17: Affected (python)
    • 5.2.17: Not affected (python)

    Update to 5.2.17; Update to 6.0.8

  • 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
    • 3:3.2.25-0+deb12u1
    • 3:3.2.25-0+deb12u2
    • 3:3.2.25-0+deb12u3
    Affected ranges
    • ECOSYSTEM: < 3:3.2.25-0+deb12u4

    Update to 3:3.2.25-0+deb12u4

  • python-django Debian:13

    Versions
    • 3:4.2.23-1
    • 3:4.2.24-1
    • 3:4.2.25-1
    • 3:4.2.25-2
    • 3:4.2.26-1
    • 3:4.2.27-0+deb13u1
    • 3:4.2.27-1
    • 3:4.2.27-2
    • 3:4.2.28-0+deb13u1
    • 3:4.2.28-0+deb13u2
    • 3:4.2.28-1
    • 3:4.2.29-1
    • 3:4.2.30-1
    • 3:5.0-1
    • 3:5.0.1-1
    • 3:5.0.2-1
    • 3:5.0.3-1
    • 3:5.0.4-1
    • 3:5.0.6-1
    • 3:5.0~alpha1-1
    • 3:5.0~rc1-1
    • 3:5.1-1
    • 3:5.1.1-1
    • 3:5.1.2-1
    • 3:5.1.3-1
    • 3:5.1.4-1
    • 3:5.1.5-1
    • 3:5.1~alpha1-1
    • 3:5.1~beta1-1
    • 3:5.1~rc1-1
    • 3:5.2-1
    • 3:5.2.1-1
    • 3:5.2.13-1
    • 3:5.2.14-1
    • 3:5.2.14-2
    • 3:5.2.15-1
    • 3:5.2.15-2
    • 3:5.2.15-2~bpo13+1
    • 3:5.2.16-1
    • 3:5.2.16-1~bpo13+1
    • 3:5.2.17-1
    • 3:5.2.17-2
    • 3:5.2.17-2~bpo13+1
    • 3:5.2.18-1
    • 3:5.2.2-1
    • 3:5.2.3-1
    • 3:5.2.4-1
    • 3:5.2.5-1
    • 3:5.2.6-1
    • 3:5.2~alpha1-1
    • 3:5.2~beta1-1
    • 3:5.2~rc1-1
    • 3:6.0-1
    • 3:6.0.1-1
    • 3:6.0.2-1
    • 3:6.0.3-1
    • 3:6.0.4-1
    • 3:6.0.5-1
    • 3:6.0.6-1
    • 3:6.0~alpha1-1
    • 3:6.0~beta1-1
    • 3:6.0~rc1-1
    • 3:6.1-1
    • 3:6.1.1-1
    • 3:6.1.2-1
    • 3:6.1~beta1-1
    • 3:6.1~rc1-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Debian:14

    Versions
    • 3:4.2.23-1
    • 3:4.2.24-1
    • 3:4.2.25-1
    • 3:4.2.25-2
    • 3:4.2.26-1
    • 3:4.2.27-1
    • 3:4.2.27-2
    • 3:4.2.28-1
    • 3:4.2.29-1
    • 3:4.2.30-1
    • 3:5.0-1
    • 3:5.0.1-1
    • 3:5.0.2-1
    • 3:5.0.3-1
    • 3:5.0.4-1
    • 3:5.0.6-1
    • 3:5.0~alpha1-1
    • 3:5.0~rc1-1
    • 3:5.1-1
    • 3:5.1.1-1
    • 3:5.1.2-1
    • 3:5.1.3-1
    • 3:5.1.4-1
    • 3:5.1.5-1
    • 3:5.1~alpha1-1
    • 3:5.1~beta1-1
    • 3:5.1~rc1-1
    • 3:5.2-1
    • 3:5.2.1-1
    • 3:5.2.13-1
    • 3:5.2.14-1
    • 3:5.2.14-2
    • 3:5.2.15-1
    • 3:5.2.15-2
    • 3:5.2.15-2~bpo13+1
    • 3:5.2.16-1
    • 3:5.2.16-1~bpo13+1
    • 3:5.2.2-1
    • 3:5.2.3-1
    • 3:5.2.4-1
    • 3:5.2.5-1
    • 3:5.2.6-1
    • 3:5.2~alpha1-1
    • 3:5.2~beta1-1
    • 3:5.2~rc1-1
    Affected ranges
    • ECOSYSTEM: < 3:5.2.17-1

    Update to 3:5.2.17-1

  • 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
    • 1:1.11.11-1ubuntu1.21+esm11
    • 1:1.11.11-1ubuntu1.21+esm12
    • 1:1.11.11-1ubuntu1.21+esm13
    • 1:1.11.11-1ubuntu1.21+esm14
    • 1:1.11.11-1ubuntu1.21+esm15
    • 1:1.11.11-1ubuntu1.21+esm17
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Ubuntu:Pro: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
    • 2:2.2.12-1ubuntu0.29
    • 2:2.2.12-1ubuntu0.29+esm1
    • 2:2.2.12-1ubuntu0.29+esm2
    • 2:2.2.12-1ubuntu0.29+esm3
    • 2:2.2.12-1ubuntu0.29+esm4
    • 2:2.2.12-1ubuntu0.29+esm5
    • 2:2.2.12-1ubuntu0.29+esm6
    • 2:2.2.12-1ubuntu0.29+esm7
    • 2:2.2.12-1ubuntu0.29+esm8
    • 2:2.2.12-1ubuntu0.29+esm10
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • 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
    • 2:3.2.12-2ubuntu1.18
    • 2:3.2.12-2ubuntu1.19
    • 2:3.2.12-2ubuntu1.20
    • 2:3.2.12-2ubuntu1.21
    • 2:3.2.12-2ubuntu1.22
    • 2:3.2.12-2ubuntu1.23
    • 2:3.2.12-2ubuntu1.24
    • 2:3.2.12-2ubuntu1.25
    • 2:3.2.12-2ubuntu1.26
    • 2:3.2.12-2ubuntu1.27
    • 2:3.2.12-2ubuntu1.29
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • 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
    • 3:4.2.11-1ubuntu1.7
    • 3:4.2.11-1ubuntu1.8
    • 3:4.2.11-1ubuntu1.9
    • 3:4.2.11-1ubuntu1.10
    • 3:4.2.11-1ubuntu1.11
    • 3:4.2.11-1ubuntu1.12
    • 3:4.2.11-1ubuntu1.13
    • 3:4.2.11-1ubuntu1.14
    • 3:4.2.11-1ubuntu1.15
    • 3:4.2.11-1ubuntu1.16
    • 3:4.2.11-1ubuntu1.18
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Ubuntu:26.10

    Versions
    • 3:5.2.9-0ubuntu4
    • 3:5.2.16-1
    • 3:5.2.17-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • python-django Ubuntu:26.04:LTS

    Versions
    • 3:5.2.4-1ubuntu2
    • 3:5.2.4-1ubuntu3
    • 3:5.2.9-0ubuntu1
    • 3:5.2.9-0ubuntu2
    • 3:5.2.9-0ubuntu3
    • 3:5.2.9-0ubuntu4
    • 3:5.2.9-0ubuntu4.1
    • 3:5.2.9-0ubuntu4.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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