The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for t
The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for the new target URL in the case of a redirect, which might allow remote attackers to trigger arbitrary GET requests with an unintended source IP address via a crafted Location header.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | django | < 1.2.7, >= 1.3, < 1.3.1 | 1.2.7, 1.3.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2011-4138
- https://github.com/django/django/commit/1a76dbefdfc60e2d5954c0ba614c3d054ba9c3f0
- https://github.com/django/django/commit/7268f8af86186518821d775c530d5558fd726930
- https://bugzilla.redhat.com/show_bug.cgi?id=737366
- https://github.com/django/django
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2011-3.yaml
- https://hermes.opensuse.org/messages/14700881
- https://www.djangoproject.com/weblog/2011/sep/09
- https://www.djangoproject.com/weblog/2011/sep/10/127
- http://openwall.com/lists/oss-security/2011/09/11/1
- http://openwall.com/lists/oss-security/2011/09/13/2
- http://www.debian.org/security/2011/dsa-2332
- https://www.djangoproject.com/weblog/2011/sep/10/127/
- https://www.djangoproject.com/weblog/2011/sep/09/
- http://secunia.com/advisories/46614
- https://github.com/advisories/GHSA-wxg3-mfph-qg9w
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-20- Platform
- Python (PyPI)
- Package
django- Disclosed
- 19.10.2011
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wxg3-mfph-qg9w - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2011-3 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: django
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 162
- First → latest
- 10.2007 08.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 16
- High 65
- Medium 63
- Low 18
Disclosures per year
- 2017: 3
- 2018: 5
- 2019: 11
- 2020: 6
- 2021: 8
- 2022: 14
- 2023: 7
- 2024: 14
- 2025: 12
- 2026: 26
earlier: 56
-
The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for t this entry
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