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Pydantic regular expression denial of service

Moderate severity GitHub Reviewed Published Apr 15, 2024 to the GitHub Advisory Database • Updated Apr 26, 2024

Package

pip pydantic (pip)

Affected versions

>= 2.0.0, < 2.4.0
< 1.10.13

Patched versions

2.4.0
1.10.13

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.

References

Published by the National Vulnerability Database Apr 15, 2024
Published to the GitHub Advisory Database Apr 15, 2024
Reviewed Apr 15, 2024
Last updated Apr 26, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.043%
(10th percentile)

Weaknesses

CVE ID

CVE-2024-3772

GHSA ID

GHSA-mr82-8j83-vxmv

Source code

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