High severity7.5OSV Advisory· Published Feb 3, 2026· Updated Jun 17, 2026
CVE-2026-1285
CVE-2026-1285
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
DjangoPyPI | >= 6.0a1, < 6.0.2 | 6.0.2 |
DjangoPyPI | >= 5.2a1, < 5.2.11 | 5.2.11 |
DjangoPyPI | >= 4.2a1, < 4.2.28 | 4.2.28 |
Affected products
154.2, 4.2.1, 4.2.10, …+ 1 more
- (no CPE)range: 4.2, 4.2.1, 4.2.10, …
- cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*range: >=4.2,<4.2.28
- osv-coords13 versionspkg:apk/chainguard/authentikpkg:apk/chainguard/authentik-fipspkg:apk/chainguard/awxpkg:apk/chainguard/label-studiopkg:bitnami/djangopkg:pypi/djangopkg:rpm/opensuse/python-Django&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/python-Django&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/python-Django&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django4&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django5&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/python-Django6&distro=openSUSE%20Tumbleweedpkg:rpm/suse/python-Django&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP7
< 2025.12.1-r2+ 12 more
- (no CPE)range: < 2025.12.1-r2
- (no CPE)range: < 2025.12.1-r2
- (no CPE)range: < 24.6.1-r27
- (no CPE)range: < 1.22.0-r3
- (no CPE)range: >= 4.2.0, < 4.2.28
- (no CPE)range: >= 6.0a1, < 6.0.2
- (no CPE)range: < 4.2.11-150600.3.47.1
- (no CPE)range: < 5.2.4-bp160.5.1
- (no CPE)range: < 5.2.11-1.1
- (no CPE)range: < 4.2.28-1.1
- (no CPE)range: < 5.2.16-1.1
- (no CPE)range: < 6.0.2-1.1
- (no CPE)range: < 4.2.11-150600.3.47.1
Patches
Vulnerability mechanics
References
9- docs.djangoproject.com/en/dev/releases/security/nvdPatchVendor Advisory
- www.djangoproject.com/weblog/2026/feb/03/security-releases/nvdPatchVendor Advisory
- github.com/advisories/GHSA-4rrr-2h4v-f3j9ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-1285ghsaADVISORY
- docs.djangoproject.com/en/dev/releases/securityghsaWEB
- github.com/django/django/commit/a33540b3e20b5d759aa8b2e4b9ca0e8edd285344ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-45.yamlghsaWEB
- groups.google.com/g/django-announcenvdRelease NotesWEB
- www.djangoproject.com/weblog/2026/feb/03/security-releasesghsaWEB
News mentions
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