Pydantic regular expression denial of service

HIGH 7.5CVE-2024-3772 · GHSA-mr82-8j83-vxmv · PYSEC-2026-1812 · Published 15/04/2024 · updated 17/06/2026

In short

CVE-2024-3772 is a HIGH (CVSS 7.5) vulnerability affecting pydantic, pydantic (pydantic).
Chance of exploitation in the next 30 days (EPSS): 0.96%, higher than 61.5% of all vulnerabilities.
Fix: update to 2.4.0, 1.10.13 or later.

Package	Affected versions	Patched versions
pydantic PyPI	`≥ 2.0.0, < 2.4.0< 1.10.13`	`2.4.01.10.13`
pydantic pydantic	`≥ 2.0, < 2.4.0< 1.10.13`	`2.4.01.10.13`

Regular expression denial of service in Pydantic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.

NVD description

Regular expression denial of service in Pydanic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.

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Package

Affected versions

Patched versions

PyPI

≥ 2.0.0, < 2.4.0< 1.10.13

2.4.01.10.13

≥ 2.0, < 2.4.0< 1.10.13

2.4.01.10.13

Description

Regular expression denial of service in Pydantic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.

NVD description

Regular expression denial of service in Pydanic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.