Vulnerability advisory

BIT-django-2026-1285

Potential denial-of-service vulnerability in django.utils.text.Truncator HTML methods

Published Updated OSV record ↗

Also known as CVE-2026-1285GHSA-4rrr-2h4v-f3j9PYSEC-2026-45

Severity

Severity not reported.

Affected versions

django Bitnami

AffectedFixed in
4.2.0 to before 4.2.284.2.28
5.2.0 to before 5.2.115.2.11
6.0.0 to before 6.0.26.0.2

Severity for this package

  • CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28. django.utils.text.Truncator.chars() and Truncator.words() methods (with html=True) and the truncatechars_html and truncatewords_html template filters allow a remote attacker to cause a potential denial-of-service via crafted inputs containing a large number of unmatched HTML end tags. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Seokchan Yoon for reporting this issue.

References

  • Codex
  • Claude Code
  • VS Code
  • GitHub Copilot
  • Cursor
  • Cline
  • Windsurf
  • Google Anti-gravity
  • OpenCode
  • Pi
  • Gemini CLI
  • Hermes Agent
  • Zed
  • Junie
  • Qwen Code
  • Kiro
  • Kilo Code
  • Factory Droid

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