> CVE-2024-14029 [CRITICAL]

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PUBLISHED
2026-09-15 16:17
MODIFIED
2026-09-15 16:17
CVSS_SCORE V3
9.0
EPSS (Prob. Exploit)
0.36%
Top 71.2%
DATA SOURCES:
NVD 🔗 2026-09-15 CWE MITRE 🔗 2026-10-01 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-09-22

> DESCRIPTION

Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subsequent request. Attackers can exploit this inconsistency when Tornado is deployed behind proxies to perform HTTP request smuggling, enabling access control bypass, cache poisoning, or connection desynchronization.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-444

> CWE DETAILED DESCRIPTIONS

CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') - The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product...
Red Hat Security Advisory: pcs security update
An update for pcs is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS...
Red Hat Security Advisory: RHOAI 3.5.2 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Tornado before 6.4.1 HTTP Request Smuggling via Transfer-Encoding

AFFECTED PACKAGES:
Unknown / Unknown
46 versions affected
ALIASES:
GHSA-753j-mpmx-qq6g

> HISTORIQUE DES MODIFICATIONS

Première apparition
15/09/2026 16:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') - The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow betwe...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/tornadoweb/tornado/security/advisories/GHSA-753j-mpmx-qq6g
https://www.vulncheck.com/advisories/tornado-before-6.4.1-http-request-smuggling...
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