CVE-2024-27351 is a medium-severity (CVSS 5.3) CWE-1333 vulnerability in django. A fix is available for django — see the affected versions and patch details below.
Regular expression denial-of-service in Django
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2024-27351.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
django🐍django🐍djangoReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
In Django 3.2 before 3.2.25, 4.2 before 4.2.11, and 5.0 before 5.0.3, the django.utils.text.Truncator.words() method (with html=True) and the truncatewords_html template filter are subject to a potential regular expression denial-of-service attack via a crafted string. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232 and CVE-2023-43665.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | django | ≥ 3.2&&< 3.2.25 | 3.2.25pip install --upgrade 'django==3.2.25' |
| 🐍PyPI | django | ≥ 4.2&&< 4.2.11 | 4.2.11pip install --upgrade 'django==4.2.11' |
| 🐍PyPI | django | ≥ 5.0&&< 5.0.3 | 5.0.3pip install --upgrade 'django==5.0.3' |
Affected Products
djangodjangoprojectDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for django, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update django to 3.2.25 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-27351 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Ansible Automation Platform 2.4 for RHEL 8 | python3x-django-0:4.2.11-1.el8ap | RHSA-2024:1640 |
| Red Hat Ansible Automation Platform 2.4 for RHEL 8 | automation-controller-0:4.5.7-1.el8ap | RHSA-2024:3781 |
| Red Hat OpenStack Platform 17.1 for RHEL 9 | python-django-0:2.2.24-9.el9ost | RHSA-2025:4187 |
| Red Hat Satellite 6.15 for RHEL 8 | python-django-0:4.2.14-1.el8pc | RHSA-2024:5662 |
| RHUI 4 for RHEL 8 | python-django-0:4.2.11-1.el8ui | RHSA-2024:1878 |
Frequently Asked Questions
Is CVE-2024-27351 in your dependencies?
Find it across PyPI, including transitive dependencies.