# Django 3.0.15.dev documentation

# Archive of security issues

Django’s development team is strongly committed to responsible reporting and disclosure of security-related issues, as outlined in Django’s security policies.

As part of that commitment, we maintain the following historical list of issues which have been fixed and disclosed. For each issue, the list below includes the date, a brief description, the CVE identifier if applicable, a list of affected versions, a link to the full disclosure and links to the appropriate patch(es).

Some important caveats apply to this information:

- Lists of affected versions include only those versions of Django which had stable, security-supported releases at the time of disclosure. This means older versions (whose security support had expired) and versions which were in pre-release (alpha/beta/RC) states at the time of disclosure may have been affected, but are not listed.
- The Django project has on occasion issued security advisories, pointing out potential security problems which can arise from improper configuration or from other issues outside of Django itself. Some of these advisories have received CVEs; when that is the case, they are listed here, but as they have no accompanying patches or releases, only the description, disclosure and CVE will be listed.

## Issues prior to Django’s security process

Some security issues were handled before Django had a formalized security process in use. For these, new releases may not have been issued at the time and CVEs may not have been assigned.

### August 16, 2006 - CVE-2007-0404

Filename validation issue in translation framework. Full description

#### Versions affected

- Django 0.90 (patch)
- Django 0.91 (patch)
- Django 0.95 (patch) (released January 21 2007)

### January 21, 2007 - CVE-2007-0405

Apparent “caching” of authenticated user. Full description

#### Versions affected

- Django 0.95 (patch)

## Issues under Django’s security process

All other security issues have been handled under versions of Django’s security process. These are listed below.

### October 26, 2007 - CVE-2007-5712

Denial-of-service via arbitrarily-large `Accept-Language` header. Full description

#### Versions affected

- Django 0.91 (patch)
- Django 0.95 (patch)
- Django 0.96 (patch)

### May 14, 2008 - CVE-2008-2302

XSS via admin login redirect. Full description

#### Versions affected

- Django 0.91 (patch)
- Django 0.95 (patch)
- Django 0.96 (patch)

### September 2, 2008 - CVE-2008-3909

CSRF via preservation of POST data during admin login. Full description

#### Versions affected

- Django 0.91 (patch)
- Django 0.95 (patch)
- Django 0.96 (patch)

### July 28, 2009 - CVE-2009-2659

Directory-traversal in development server media handler. Full description

#### Versions affected

- Django 0.96 (patch)
- Django 1.0 (patch)

### October 9, 2009 - CVE-2009-3965

Denial-of-service via pathological regular expression performance. Full description

#### Versions affected

- Django 1.0 (patch)
- Django 1.1 (patch)

### September 8, 2010 - CVE-2010-3082

XSS via trusting unsafe cookie value. Full description

#### Versions affected

- Django 1.2 (patch)

### December 22, 2010 - CVE-2010-4534

Information leakage in administrative interface. Full description

#### Versions affected

- Django 1.1 (patch)
- Django 1.2 (patch)

### December 22, 2010 - CVE-2010-4535

Denial-of-service in password-reset mechanism. Full description

#### Versions affected

- Django 1.1 (patch)
- Django 1.2 (patch)

### February 8, 2011 - CVE-2011-0696

CSRF via forged HTTP headers. Full description

#### Versions affected

- Django 1.1 (patch)
- Django 1.2 (patch)

### February 8, 2011 - CVE-2011-0697

XSS via unsanitized names of uploaded files. Full description

#### Versions affected

- Django 1.1 (patch)
- Django 1.2 (patch)

### February 8, 2011 - CVE-2011-0698

Directory-traversal on Windows via incorrect path-separator handling. Full description

#### Versions affected

- Django 1.1 (patch)
- Django 1.2 (patch)

### September 9, 2011 - CVE-2011-4136

Session manipulation when using memory-cache-backed session. Full description

#### Versions affected

- Django 1.2 (patch)
- Django 1.3 (patch)

### September 9, 2011 - CVE-2011-4137

Denial-of-service via `URLField.verify_exists`. Full description

#### Versions affected

- Django 1.2 (patch)
- Django 1.3 (patch)

### September 9, 2011 - CVE-2011-4138

Information leakage/arbitrary request issuance via `URLField.verify_exists`. Full description

#### Versions affected

- Django 1.2: (patch)
- Django 1.3: (patch)

### September 9, 2011 - CVE-2011-4139

`Host` header cache poisoning. Full description

#### Versions affected

- Django 1.2 (patch)
- Django 1.3 (patch)

### September 9, 2011 - CVE-2011-4140

Potential CSRF via `Host` header. Full description

#### Versions affected

This notification was an advisory only, so no patches were issued.

- Django 1.2
- Django 1.3

### July 30, 2012 - CVE-2012-3442

XSS via failure to validate redirect scheme. Full description

#### Versions affected

- Django 1.3: (patch)
- Django 1.4: (patch)

### July 30, 2012 - CVE-2012-3443

Denial-of-service via compressed image files. Full description

#### Versions affected

- Django 1.3: (patch)
- Django 1.4: (patch)

### July 30, 2012 - CVE-2012-3444

Denial-of-service via large image files. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### October 17, 2012 - CVE-2012-4520

`Host` header poisoning. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### December 10, 2012 - No CVE 1

Additional hardening of `Host` header handling. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### December 10, 2012 - No CVE 2

Additional hardening of redirect validation. Full description

#### Versions affected

- Django 1.3: (patch)
- Django 1.4: (patch)

### February 19, 2013 - No CVE

Additional hardening of `Host` header handling. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### February 19, 2013 - CVE-2013-1664 / CVE-2013-1665

Entity-based attacks against Python XML libraries. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### February 19, 2013 - CVE-2013-0305

Information leakage via admin history log. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### February 19, 2013 - CVE-2013-0306

Denial-of-service via formset `max_num` bypass. Full description

#### Versions affected

- Django 1.3 (patch)
- Django 1.4 (patch)

### August 13, 2013 - CVE-2013-4249

XSS via admin trusting `URLField` values. Full description

#### Versions affected

- Django 1.5 (patch)

### August 13, 2013 - CVE-2013-6044

Possible XSS via unvalidated URL redirect schemes. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)

### September 10, 2013 - CVE-2013-4315

Directory-traversal via `ssi` template tag. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)

### September 14, 2013 - CVE-2013-1443

Denial-of-service via large passwords. Full description

#### Versions affected

- Django 1.4 (patch and Python compatibility fix)
- Django 1.5 (patch)

### April 21, 2014 - CVE-2014-0472

Unexpected code execution using `reverse()`. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### April 21, 2014 - CVE-2014-0473

Caching of anonymous pages could reveal CSRF token. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### April 21, 2014 - CVE-2014-0474

MySQL typecasting causes unexpected query results. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### May 18, 2014 - CVE-2014-1418

Caches may be allowed to store and serve private data. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### May 18, 2014 - CVE-2014-3730

Malformed URLs from user input incorrectly validated. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### August 20, 2014 - CVE-2014-0480

`reverse()` can generate URLs pointing to other hosts. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### August 20, 2014 - CVE-2014-0481

File upload denial of service. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### August 20, 2014 - CVE-2014-0482

`RemoteUserMiddleware` session hijacking. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### August 20, 2014 - CVE-2014-0483

Data leakage via querystring manipulation in admin. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.5 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### January 13, 2015 - CVE-2015-0219

WSGI header spoofing via underscore/dash conflation. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### January 13, 2015 - CVE-2015-0220

Mitigated possible XSS attack via user-supplied redirect URLs. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### January 13, 2015 - CVE-2015-0221

Denial-of-service attack against `django.views.static.serve()`. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)

### January 13, 2015 - CVE-2015-0222

Database denial-of-service with `ModelMultipleChoiceField`. Full description

#### Versions affected

- Django 1.6 (patch)
- Django 1.7 (patch)

### March 9, 2015 - CVE-2015-2241

XSS attack via properties in `ModelAdmin.readonly_fields`. Full description

#### Versions affected

- Django 1.7 (patch)
- Django 1.8 (patch)

### March 18, 2015 - CVE-2015-2316

Denial-of-service possibility with `strip_tags()`. Full description

#### Versions affected

- Django 1.6 (patch)
- Django 1.7 (patch)
- Django 1.8 (patch)

### March 18, 2015 - CVE-2015-2317

Mitigated possible XSS attack via user-supplied redirect URLs. Full description

#### Versions affected

- Django 1.4 (patch)
- Django 1.6 (patch)
- Django 1.7 (patch)
- Django 1.8 (patch)

### May 20, 2015 - CVE-2015-3982

Fixed session flushing in the cached_db backend. Full description

#### Versions affected

- Django 1.8 (patch)

### July 8, 2015 - CVE-2015-5143

Denial-of-service possibility by filling session store. Full description

#### Versions affected

- Django 1.8 (patch)
- Django 1.7 (patch)
- Django 1.4 (patch)

### July 8, 2015 - CVE-2015-5144

Header injection possibility since validators accept newlines in input. Full description

#### Versions affected

- Django 1.8 (patch)
- Django 1.7 (patch)
- Django 1.4 (patch)

### July 8, 2015 - CVE-2015-5145

Denial-of-service possibility in URL validation. Full description

#### Versions affected

- Django 1.8 (patch)

### August 18, 2015 - CVE-2015-5963 / CVE-2015-5964

Denial-of-service possibility in `logout()` view by filling session store. Full description

#### Versions affected

- Django 1.8 (patch)
- Django 1.7 (patch)
- Django 1.4 (patch)

### November 24, 2015 - CVE-2015-8213

Settings leak possibility in `date` template filter. Full description

#### Versions affected

- Django 1.8 (patch)
- Django 1.7 (patch)

### February 1, 2016 - CVE-2016-2048

User with “change” but not “add” permission can create objects for `ModelAdmin`’s with `save_as=True`. Full description

#### Versions affected

- Django 1.9 (patch)

### March 1, 2016 - CVE-2016-2512

Malicious redirect and possible XSS attack via user-supplied redirect URLs containing basic auth. Full description

#### Versions affected

- Django 1.9 (patch)
- Django 1.8 (patch)

### March 1, 2016 - CVE-2016-2513

User enumeration through timing difference on password hasher work factor upgrade. Full description

#### Versions affected

- Django 1.9 (patch)
- Django 1.8 (patch)

### July 18, 2016 - CVE-2016-6186

XSS in admin’s add/change related popup. Full description

#### Versions affected

- Django 1.9 (patch)
- Django 1.8 (patch)

### September 26, 2016 - CVE-2016-7401

CSRF protection bypass on a site with Google Analytics. Full description

#### Versions affected

- Django 1.9 (patch)
- Django 1.8 (patch)

### November 1, 2016 - CVE-2016-9013

User with hardcoded password created when running tests on Oracle. Full description

#### Versions affected

- Django 1.10 (patch)
- Django 1.9 (patch)
- Django 1.8 (patch)

### November 1, 2016 - CVE-2016-9014

DNS rebinding vulnerability when `DEBUG=True`. Full description

#### Versions affected

- Django 1.10 (patch)
- Django 1.9 (patch)
- Django 1.8 (patch)

### April 4, 2017 - CVE-2017-7233

Open redirect and possible XSS attack via user-supplied numeric redirect URLs. Full description

#### Versions affected

- Django 1.10 (patch)
- Django 1.9 (patch)
- Django 1.8 (patch)

### April 4, 2017 - CVE-2017-7234

Open redirect vulnerability in `django.views.static.serve()`. Full description

#### Versions affected

- Django 1.10 (patch)
- Django 1.9 (patch)
- Django 1.8 (patch)

### September 5, 2017 - CVE-2017-12794

Possible XSS in traceback section of technical 500 debug page. Full description

#### Versions affected

- Django 1.11 (patch)
- Django 1.10 (patch)

### February 1, 2018 - CVE-2018-6188

Information leakage in `AuthenticationForm`. Full description

#### Versions affected

- Django 2.0 (patch)
- Django 1.11 (patch)

### March 6, 2018 - CVE-2018-7536

Denial-of-service possibility in `urlize` and `urlizetrunc` template filters. Full description

#### Versions affected

- Django 2.0 (patch)
- Django 1.11 (patch)
- Django 1.8 (patch)

### March 6, 2018 - CVE-2018-7537

Denial-of-service possibility in `truncatechars_html` and `truncatewords_html` template filters. Full description

#### Versions affected

- Django 2.0 (patch)
- Django 1.11 (patch)
- Django 1.8 (patch)

### August 1, 2018 - CVE-2018-14574

Open redirect possibility in `CommonMiddleware`. Full description

#### Versions affected

- Django 2.1 (patch)
- Django 2.0 (patch)
- Django 1.11 (patch)

### October 1, 2018 - CVE-2018-16984

Password hash disclosure to “view only” admin users. Full description

#### Versions affected

- Django 2.1 (patch)

### January 4, 2019 - CVE-2019-3498

Content spoofing possibility in the default 404 page. Full description

#### Versions affected

- Django 2.1 (patch)
- Django 2.0 (patch)
- Django 1.11 (patch)

### February 11, 2019 - CVE-2019-6975

Memory exhaustion in `django.utils.numberformat.format()`. Full description

#### Versions affected

- Django 2.1 (patch)
- Django 2.0 (patch and correction)
- Django 1.11 (patch)

### June 3, 2019 - CVE-2019-11358

Prototype pollution in bundled jQuery. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)

### June 3, 2019 - CVE-2019-12308

XSS via “Current URL” link generated by `AdminURLFieldWidget`. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)
- Django 1.11 (patch)

### July 1, 2019 - CVE-2019-12781

Incorrect HTTP detection with reverse-proxy connecting via HTTPS. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)
- Django 1.11 (patch)

### August 1, 2019 - CVE-2019-14232

Denial-of-service possibility in `django.utils.text.Truncator`. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)
- Django 1.11 (patch)

### August 1, 2019 - CVE-2019-14233

Denial-of-service possibility in `strip_tags()`. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)
- Django 1.11 (patch)

### August 1, 2019 - CVE-2019-14234

SQL injection possibility in key and index lookups for `JSONField`/`HStoreField`. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)
- Django 1.11 (patch)

### August 1, 2019 - CVE-2019-14235

Potential memory exhaustion in `django.utils.encoding.uri_to_iri()`. Full description

#### Versions affected

- Django 2.2 (patch)
- Django 2.1 (patch)
- Django 1.11 (patch)

### December 2, 2019 - CVE-2019-19118

Privilege escalation in the Django admin. Full description

#### Versions affected

- Django 3.0 (patch)
- Django 2.2 (patch)
- Django 2.1 (patch)

### December 18, 2019 - CVE-2019-19844

Potential account hijack via password reset form. Full description

#### Versions affected

- Django 3.0 (patch)
- Django 2.2 (patch)
- Django 1.11 (patch)

### February 3, 2020 - CVE-2020-7471

Potential SQL injection via `StringAgg(delimiter)`. Full description

#### Versions affected

- Django 3.0 (patch)
- Django 2.2 (patch)
- Django 1.11 (patch)

### March 4, 2020 - CVE-2020-9402

Potential SQL injection via `tolerance` parameter in GIS functions and aggregates on Oracle. Full description

#### Versions affected

- Django 3.0 (patch)
- Django 2.2 (patch)
- Django 1.11 (patch)

### June 3, 2020 - CVE-2020-13254

Potential data leakage via malformed memcached keys. Full description

#### Versions affected

- Django 3.0 (patch)
- Django 2.2 (patch)

### June 3, 2020 - CVE-2020-13596

Possible XSS via admin `ForeignKeyRawIdWidget`. Full description

#### Versions affected

- Django 3.0 (patch)
- Django 2.2 (patch)

### September 1, 2020 - CVE-2020-24583

Incorrect permissions on intermediate-level directories on Python 3.7+. Full description

#### Versions affected

- Django 3.1 (patch)
- Django 3.0 (patch)
- Django 2.2 (patch)

### September 1, 2020 - CVE-2020-24584

Permission escalation in intermediate-level directories of the file system cache on Python 3.7+. Full description

#### Versions affected

- Django 3.1 (patch)
- Django 3.0 (patch)
- Django 2.2 (patch)

### February 1, 2021 - CVE-2021-3281

Potential directory-traversal via `archive.extract()`. Full description

#### Versions affected

- Django 3.1 (patch)
- Django 3.0 (patch)
- Django 2.2 (patch)

### February 19, 2021 - CVE-2021-23336

Web cache poisoning via `django.utils.http.limited_parse_qsl()`. Full description

#### Versions affected

- Django 3.2 (patch)
- Django 3.1 (patch)
- Django 3.0 (patch)
- Django 2.2 (patch)

### April 6, 2021 - CVE-2021-28658

Potential directory-traversal via uploaded files. Full description

#### Versions affected

- Django 3.2 (patch)
- Django 3.1 (patch)
- Django 3.0 (patch)
- Django 2.2 (patch)