CVE-2021-32052
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 3.2.2-1 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:2.2.22-1 |
| sid | Fixed | 2:2.2.22-1 |
| forky | Fixed | 2:2.2.22-1 |
| bullseye | Fixed | 2:2.2.22-1 |
| bookworm | Fixed | 2:2.2.22-1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-32052
- https://github.com/django/django/commit/e1e81aa1c4427411e3c68facdd761229ffea6f6f
- https://bugzilla.redhat.com/show_bug.cgi?id=1944801
- https://docs.djangoproject.com/en/3.2/releases/security
- https://github.com/advisories/GHSA-qm57-vhq3-3fwf
- https://github.com/django/django
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2021-8.yaml
- https://groups.google.com/forum/#!forum/django-announce
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE
- https://security.netapp.com/advisory/ntap-20210611-0002
- https://www.djangoproject.com/weblog/2021/may/06/security-releases
- http://www.openwall.com/lists/oss-security/2021/05/06/1
- https://docs.djangoproject.com/en/3.2/releases/security/
- https://www.djangoproject.com/weblog/2021/may/06/security-releases/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/
- https://www.suse.com/security/cve/CVE-2021-32052.html
- https://security-tracker.debian.org/tracker/CVE-2021-32052
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.