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CVE-2024-3772

Regular expression denial of service in Pydantic < 2.4.0

HIGH
7.5
CVSS Score
Published: April 15, 2024 at 01:42 AM UTC
Updated: June 17, 2026 at 07:44 AM UTC
3 products affected across 3 vendorsFedoraPydanticPydantic

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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora· Fedora Projectrpm
95%
38
Pydantic· Pydantic Project
95%
1.0 ≤ v < 1.10.131.02.0
Affected range stops below 1.10.13, so it looks safe — our inference, not a vendor statement
Pydantic· Pydantic
95%
v < 1.10.131.0 ≤ v < 1.10.132.0 ≤ v < 2.4.01.02.0
Affected range stops below 1.10.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

ExploitIssue TrackingPatch
Source: 430a6cef-dc26-47e3-9fa8-52fb7f19644e
https://github.com/pydantic/pydantic/pull/7360
Mailing ListThird Party Advisory
Source: 430a6cef-dc26-47e3-9fa8-52fb7f19644e
https://lists.fedoraproject.org/archives/list/[email protected]/message/6JBZLMSH4GAZOVBMT2JUO2LXHY7M2ALI/

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1333

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