# CVE-2023-36053: python-django: 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...

CVE-2023-36053 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2023-36053, released July 3, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-36053
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0298
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 3, 2023

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-django Debian 11.6 (bullseye) | 2:2.2.28-1~deb11u2 | [DSA-5465-1](https://patchblox.com/security/data/fix/linux/dsa-5465-1.md) | Aug 3, 2023 |
| Linux | python-django Debian 12.15 (bookworm) | 3:3.2.19-1+deb12u1 | [DSA-5465-1](https://patchblox.com/security/data/fix/linux/dsa-5465-1.md) | Aug 3, 2023 |
| Linux | python-django Debian 13.5 (trixie) | 3:3.2.20-1 | [DEBIAN-CVE-2023-36053](https://patchblox.com/security/data/fix/linux/debian-cve-2023-36053.md) | Jul 3, 2023 |
| Linux | python-django Debian 14 | 3:3.2.20-1 | [DEBIAN-CVE-2023-36053](https://patchblox.com/security/data/fix/linux/debian-cve-2023-36053.md) | Jul 3, 2023 |
| Linux | python-django Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm1 | [python-django 1:1.11.11-1ubuntu1.21+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-django-1-1.11.11-1ubuntu1.21-esm1.md) | Jul 3, 2023 |
| Linux | python-django-common Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm1 | [python-django-common 1:1.11.11-1ubuntu1.21+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-django-common-1-1.11.11-1ubuntu1.21-esm1.md) | Jul 3, 2023 |
| Linux | python3-django Ubuntu 18.04.6 LTS (bionic) | 1:1.11.11-1ubuntu1.21+esm1 | [python3-django 1:1.11.11-1ubuntu1.21+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-django-1-1.11.11-1ubuntu1.21-esm1.md) | Jul 3, 2023 |
| Linux | python3-django Ubuntu 20.04 LTS (focal) | 2:2.2.12-1ubuntu0.18 | [python3-django 2:2.2.12-1ubuntu0.18](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-django-2-2.2.12-1ubuntu0.18.md) | Jul 3, 2023 |
| Linux | python3-django Ubuntu 22.04.1 LTS (jammy) | 2:3.2.12-2ubuntu1.7 | [python3-django 2:3.2.12-2ubuntu1.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-django-2-3.2.12-2ubuntu1.7.md) | Jul 3, 2023 |

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Data as of 2026-11-12T01:51:14Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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