CVE-2026-1285

Summary

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.

Affected Software

VendorProductVersion RangeStatus
djangoprojectDjango6.0 < 6.0.2affected
djangoprojectDjango6.0.2unaffected
djangoprojectDjango5.2 < 5.2.11affected
djangoprojectDjango5.2.11unaffected
djangoprojectDjango4.2 < 4.2.28affected
djangoprojectDjango4.2.28unaffected

Weaknesses

  • CWE-407: CWE-407: Inefficient Algorithmic Complexity

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References