CVE Catalog

CVE-2023-36053

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

High risk
2.67%

84th percentile - higher than 84% of all known CVEs

Summary

In Django versions 3.2 before 3.2.20, 4 before 4.1.10, and 4.2 before 4.2.3, EmailValidator and URLValidator are vulnerable to a ReDoS (regular expression denial of service) attack due to a very large number of domain name labels in emails and URLs.

Risk Assessment

An attacker could exploit this vulnerability to overload the server, potentially leading to service unavailability. Organizations should be aware of the risks associated with handling malformed input.

Recommendation

It is recommended to upgrade Django to versions 3.2.20, 4.1.10, or 4.2.3 to mitigate this vulnerability. Additionally, it is advisable to monitor and limit user input.

Related vulnerabilities

Original NVD description (English source)

In Django 3.2 before 3.2.20, 4 before 4.1.10, and 4.2 before 4.2.3, EmailValidator and URLValidator are subject to a potential ReDoS (regular expression denial of service) attack via a very large number of domain name labels of emails and URLs.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS