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CVE-2023-23969

HIGHCVSS 7.5/10EPSS 47.10%

Last modified

CVE-2023-23969 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large.. EPSS estimates a 47.10% chance of exploitation in the next 30 days.

Description

In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
47.10%

98.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DjangoprojectDjango>= 3.2, < 3.2.17
DjangoprojectDjango>= 4.0, < 4.0.9
DjangoprojectDjango>= 4.1, < 4.1.6
DebianDebian Linux10.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-23969?
In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large.
How severe is CVE-2023-23969?
CVE-2023-23969 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 47.10% probability of exploitation in the next 30 days.
How do I fix CVE-2023-23969?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST