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Full vulnerability report · 2024
CVE-2024-3772High confidence

Regular expression denial of service in Pydantic < 2.4.0

Pydantic · Pydantic

5.9MediumCVSS 3.1
Recommended action
Within 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2024-1252

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

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.

What

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

The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

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

The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Inefficient Regular Expression Complexity → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-1333 ↗

CWE-1333: Inefficient Regular Expression Complexity. The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedDenial of serviceCWE-1333Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-1328Red Hat Ansible Automation Platform: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Ansible Automation Platform ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand erzeugen, vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, Dateien zu manipulieren oder Cross-Site-Scripting (XSS)-Angriffe durchzuführen.

Official advisory
BSI · German · WID-SEC-W-2024-0932IBM App Connect Enterprise: Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in IBM App Connect Enterprise ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0670Multiples vulnérabilités dans Splunk Machine Learning Toolkit

Record?id=CVE-2023-7018 Référence CVE CVE-2024-27318 https://www.cve.org/CVERecord?id=CVE-2024-27318 Référence CVE CVE-2024-27319 https://www.cve.org/CVERecord?id=CVE-2024-27319 Référence CVE CVE-2024-31580 https://www.cve.org/CVERecord?id=CVE-2024-31580 Référence CVE CVE-2024-31583 https://www.cve.org/CVERecord?id=CVE-2024-31583 Référence CVE CVE-2024-34062 https://www.cve.org/CVERecord?id=CVE-2024-34062 Référence CVE CVE-2024-35195 https://www.cve.org/CVERecord?id=CVE-2024-35195 Référence CVE CVE-2024-3568 https://www.cve.org/CVERecord?id=CVE-2024-3568 Référence CVE CVE-2024-3651 https://www.cve.org/CVERecord?id=CVE-2024-3651 Référence CVE CVE-2024-3772 https://www.cve.org/CVERecord?id=CVE-2024-3772 Référence CVE CVE-2024-37891 https://www.cve.org/CVERecord?id=CVE-2024-37891 Référence CVE CVE-2024-5206 https://www.cve.org/CVERecord?id=CVE-2024-5206 Référence CVE CVE-2024-6345 https://www.cve.org/CVERecord?id=CVE-2024-6345 Gestion détaillée du document le 13 août 2024 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des système

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0579Multiples vulnérabilités dans les produits IBM

d?id=CVE-2024-33600 Référence CVE CVE-2024-33601 https://www.cve.org/CVERecord?id=CVE-2024-33601 Référence CVE CVE-2024-33602 https://www.cve.org/CVERecord?id=CVE-2024-33602 Référence CVE CVE-2024-34062 https://www.cve.org/CVERecord?id=CVE-2024-34062 Référence CVE CVE-2024-34064 https://www.cve.org/CVERecord?id=CVE-2024-34064 Référence CVE CVE-2024-34069 https://www.cve.org/CVERecord?id=CVE-2024-34069 Référence CVE CVE-2024-34997 https://www.cve.org/CVERecord?id=CVE-2024-34997 Référence CVE CVE-2024-35154 https://www.cve.org/CVERecord?id=CVE-2024-35154 Référence CVE CVE-2024-35195 https://www.cve.org/CVERecord?id=CVE-2024-35195 Référence CVE CVE-2024-3772 https://www.cve.org/CVERecord?id=CVE-2024-3772 Référence CVE CVE-2024-4067 https://www.cve.org/CVERecord?id=CVE-2024-4067 Référence CVE CVE-2024-4068 https://www.cve.org/CVERecord?id=CVE-2024-4068 Référence CVE CVE-2024-4603 https://www.cve.org/CVERecord?id=CVE-2024-4603 Référence CVE CVE-2024-4741 https://www.cve.org/CVERecord?id=CVE-2024-4741 Référence CVE CVE-2024-5206 https://www.cve.org/CVERecord?id=CVE-2024-5206 Référence CVE CVE-2024-6387 https://www.cve.org/CVERecord?id=CVE-2024-6387 Gestion détaillée du document le 12 juillet 2024 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Con

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0514Multiples vulnérabilités dans les produits IBM

d?id=CVE-2024-29041 Référence CVE CVE-2024-29131 https://www.cve.org/CVERecord?id=CVE-2024-29131 Référence CVE CVE-2024-29133 https://www.cve.org/CVERecord?id=CVE-2024-29133 Référence CVE CVE-2024-29180 https://www.cve.org/CVERecord?id=CVE-2024-29180 Référence CVE CVE-2024-29857 https://www.cve.org/CVERecord?id=CVE-2024-29857 Référence CVE CVE-2024-30171 https://www.cve.org/CVERecord?id=CVE-2024-30171 Référence CVE CVE-2024-30172 https://www.cve.org/CVERecord?id=CVE-2024-30172 Référence CVE CVE-2024-30251 https://www.cve.org/CVERecord?id=CVE-2024-30251 Référence CVE CVE-2024-34351 https://www.cve.org/CVERecord?id=CVE-2024-34351 Référence CVE CVE-2024-3772 https://www.cve.org/CVERecord?id=CVE-2024-3772 Référence CVE CVE-2024-38329 https://www.cve.org/CVERecord?id=CVE-2024-38329 Gestion détaillée du document le 21 juin 2024 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
2.0 < 2.4.0; 1.0 < 1.10.13
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 15 Apr 2024 · Last source change 13 Feb 2025, 17:53 UTC · CWE-1333 · Inefficient Regular Expression Complexity

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2024-1252
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2024-1252↗CISA Vulnrichment SSVC evidence↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2024-3772 · cve.blacktree.nl