CVE-2021-31542

In Django 2.2 before 2.2.21, 3.1 before 3.1.9, and 3.2 before 3.2.1, MultiPartParser, UploadedFile, and FieldFile allowed directory traversal via uploaded files with suitably crafted file names.

• CWE-22

• http://www.openwall.com/lists/oss-security/2021/05/04/3Mailing List, Patch, Third Party Advisory
• https://docs.djangoproject.com/en/3.2/releases/security/Patch, Vendor Advisory
• https://github.com/django/django/commit/04ac1624bdc2fa737188401757cf95ced122d26d
• https://github.com/django/django/commit/25d84d64122c15050a0ee739e859f22ddab5ac48
• https://github.com/django/django/commit/c98f446c188596d4ba6de71d1b77b4a6c5c2a007
• https://groups.google.com/forum/#%21forum/django-announce
• https://lists.debian.org/debian-lts-announce/2021/05/msg00005.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/
• https://security.netapp.com/advisory/ntap-20210618-0001/Third Party Advisory
• https://www.djangoproject.com/weblog/2021/may/04/security-releases/Release Notes, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2021/05/04/3Mailing List, Patch, Third Party Advisory
• https://docs.djangoproject.com/en/3.2/releases/security/Patch, Vendor Advisory
• https://github.com/django/django/commit/04ac1624bdc2fa737188401757cf95ced122d26d
• https://github.com/django/django/commit/25d84d64122c15050a0ee739e859f22ddab5ac48
• https://github.com/django/django/commit/c98f446c188596d4ba6de71d1b77b4a6c5c2a007
• https://groups.google.com/forum/#%21forum/django-announce
• https://lists.debian.org/debian-lts-announce/2021/05/msg00005.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVKYPHR3TKR2ESWXBPOJEKRO2OSJRZUE/
• https://security.netapp.com/advisory/ntap-20210618-0001/Third Party Advisory
• https://www.djangoproject.com/weblog/2021/may/04/security-releases/Release Notes, Vendor Advisory

Published

May 5, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-31535LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7…9.8
• CVE-2021-31537SIS SIS-REWE Go before 7.7 SP17 allows XSS: rewe/prod/web/in…6.1
• CVE-2021-31538LANCOM R&S Unified Firewall (UF) devices running LCOS FX 10.…7.5
• CVE-2021-31539Wowza Streaming Engine before 4.8.8.01 (in a default install…5.5
• CVE-2021-3154An issue was discovered in SolarWinds Serv-U before 15.2.2. …7.5
• CVE-2021-31540Wowza Streaming Engine through 4.8.5 (in a default installat…7.1
• CVE-2021-31545An issue was discovered in the AbuseFilter extension for Med…5.3
• CVE-2021-31546An issue was discovered in the AbuseFilter extension for Med…4.3
• CVE-2021-31547An issue was discovered in the AbuseFilter extension for Med…4.3
• CVE-2021-31548An issue was discovered in the AbuseFilter extension for Med…6.5
• CVE-2021-31549An issue was discovered in the AbuseFilter extension for Med…4.3
• CVE-2021-3155snapd 2.54.2 and earlier created ~/snap directories in user …5.5