Medium severity · published May 6, 2021
CVE-2021-32052
In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibit newlines and tabs (unless the URLField form field is…
6.1
CVSS
3.2%
EPSS
No
On KEV
Description
In Django 2.2 before 2.2.22, 3.1 before 3.1.10, and 3.2 before 3.2.2 (with Python 3.9.5+), URLValidator does not prohibit newlines and tabs (unless the URLField form field is used). If an application uses values with newlines in an HTTP response, header injection can occur. Django itself is unaffected because HttpResponse prohibits newlines in HTTP headers.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DJ
Django · Djangoproject
2.2 before 2.2.22; 3.1 before 3.1.10; 3.2 before 3.2.2 · source: NVD
FE
Fedora · Fedoraproject
34 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32052
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32052
Mailing List
http://www.openwall.com/lists/oss-security/2021/05/06/1
Patch
https://docs.djangoproject.com/en/3.2/releases/security/
groups.google.com
https://groups.google.com/forum/#%21forum/django-announce
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210611-0002/
Patch
https://www.djangoproject.com/weblog/2021/may/06/security-releases/
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