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TI-2024-03518 Aliases CVE-2024-3772GHSA-mr82-8j83-vxmv

Regular expression denial of service in Pydantic < 2.4.0

Priority HIGH 66CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-1333.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00957 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Pydantic (Pydantic): 2.4.0, 1.10.13pydantic (PyPI): 2.4.0, 1.10.13Red Hat: 1 advisory

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pydanticPydantic2.0 to before 2.4.0; 1.0 to before 1.10.132.4.0, 1.10.13Patch availableCNA
—pydantic (PyPI)2.0.0 to before 2.4.02.4.0Patch availableGHSA-mr82-8j83-vxmv
—pydantic (PyPI)before 1.10.131.10.13Patch availableGHSA-mr82-8j83-vxmv
  • Pydantic Vendorpydantic Affected 2.0 to before 2.4.0; 1.0 to before 1.10.13 Fixed in 2.4.0, 1.10.13 Patch available CNA
  • pydantic (PyPI) Vendor— Affected 2.0.0 to before 2.4.0 Fixed in 2.4.0 Patch available GHSA-mr82-8j83-vxmv
  • pydantic (PyPI) Vendor— Affected before 1.10.13 Fixed in 1.10.13 Patch available GHSA-mr82-8j83-vxmv

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:pydantic:pydantic:*:*:*:*:*:*:*:*before 1.10.13; 2.0 to before 2.4.0Vulnerablepydantic
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*38VulnerableFedoraproject
  • cpe:2.3:a:pydantic:pydantic:*:*:*:*:*:*:*:* Versions before 1.10.13; 2.0 to before 2.4.0 Vulnerable ·pydantic
  • cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject

Remediation

  • Fix · CNA Pydantic (Pydantic) Fixed in 2.4.0, 1.10.13
  • Fix · GHSA-mr82-8j83-vxmv pydantic (PyPI) Fixed in 2.4.0 Advisory →
  • Fix · GHSA-mr82-8j83-vxmv pydantic (PyPI) Fixed in 1.10.13 Advisory →

Red Hat 1 advisory

  • RHSA-2024:3781 Released 2024-06-10 · Red Hat rating Moderate
    Red Hat Ansible Automation Platform 2.4 Product Security and Bug Fix Update
    • Red Hat Ansible Automation Platform 2.4 for RHEL 8 automation-controller-venv-tower-4.5.7-1.el8ap, automation-hub-4.9.2-1.el8ap, python39-aiohttp-3.9.5-1.el8ap +25
    • Red Hat Ansible Automation Platform 2.4 for RHEL 9 automation-controller-venv-tower-4.5.7-1.el9ap, automation-hub-4.9.2-1.el9ap, python-aiohttp-3.9.5-1.el9ap +25

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2.4 for RHEL 8Fixed RHSA-2024:3781
Red Hat Ansible Automation Platform 2.4 for RHEL 9Fixed RHSA-2024:3781
Not affected: 2 products
  • Red Hat Ansible Automation Platform 2.4 for RHEL 8
  • Red Hat Ansible Automation Platform 2.4 for RHEL 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-3772
  2. 2026-10-03 Alias added: GHSA-mr82-8j83-vxmv

References

Exploit 1

Advisory 2

Other 4

  • TI-2021-10218 Use of "infinity" as an input to datetime and date fields causes infinite loop in pydantic CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences