CVE-2019-6975

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-02-11 · updated 2026-06-17
Weakness: CWE-770

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.

Affected products

Canonical Ubuntu Linux: 16.04, 18.04, 18.10
Django: from 1.11.0 before 1.11.19; from 2.0.0 before 2.0.11; from 2.1.0 before 2.1.6 — fixed in 1.11.19, 2.0.11, 2.1.6
Fedoraproject Fedora: 28, 29

How to fix

Upgrade to a fixed version: Django 1.11.19, 2.0.11, 2.1.6. Check the vendor advisory for mitigations.

References

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

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