High severityNVD Advisory· Published Oct 19, 2011· Updated Jun 16, 2026
CVE-2011-4137
CVE-2011-4137
Description
The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 relies on Python libraries that attempt access to an arbitrary URL with no timeout, which allows remote attackers to cause a denial of service (resource consumption) via a URL associated with (1) a slow response, (2) a completed TCP connection with no application data sent, or (3) a large amount of application data, a related issue to CVE-2011-1521.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
DjangoPyPI | < 1.2.7 | 1.2.7 |
DjangoPyPI | >= 1.3, < 1.3.1 | 1.3.1 |
Affected products
23cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*+ 21 more
- cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*range: <=1.2.6
- cpe:2.3:a:djangoproject:django:0.91:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:0.95:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:0.95.1:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:0.96:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.1:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2.1:2:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.3:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.3:alpha1:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:1.3:alpha2:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
16- openwall.com/lists/oss-security/2011/09/11/1nvdPatchWEB
- openwall.com/lists/oss-security/2011/09/13/2nvdPatchWEB
- bugzilla.redhat.com/show_bug.cginvdPatchWEB
- www.djangoproject.com/weblog/2011/sep/09/nvdPatchVendor Advisory
- www.djangoproject.com/weblog/2011/sep/10/127/nvdPatch
- github.com/advisories/GHSA-3jqw-crqj-w8qwghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2011-4137ghsaADVISORY
- openwall.com/lists/oss-security/2011/09/15/5nvdWEB
- www.debian.org/security/2011/dsa-2332nvdWEB
- github.com/django/django/commit/1a76dbefdfc60e2d5954c0ba614c3d054ba9c3f0ghsaWEB
- github.com/django/django/commit/7268f8af86186518821d775c530d5558fd726930ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2011-2.yamlghsaWEB
- hermes.opensuse.org/messages/14700881nvdWEB
- www.djangoproject.com/weblog/2011/sep/09ghsaWEB
- www.djangoproject.com/weblog/2011/sep/10/127ghsaWEB
- secunia.com/advisories/46614nvd
News mentions
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