CVE-2011-4138
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.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N- Weakness (CWE)
- CWE-20
- EPSS score
- 2.4% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-0008)
- Published
- October 19, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-0008 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
- djangoproject / django
References
- http://openwall.com/lists/oss-security/2011/09/11/1(Patch)
- http://openwall.com/lists/oss-security/2011/09/13/2(Patch)
- http://secunia.com/advisories/46614
- http://www.debian.org/security/2011/dsa-2332
- https://bugzilla.redhat.com/show_bug.cgi?id=737366(Patch)
- https://hermes.opensuse.org/messages/14700881
- https://www.djangoproject.com/weblog/2011/sep/09/(Patch, Vendor Advisory)
- https://www.djangoproject.com/weblog/2011/sep/10/127/(Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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