> CVE-2026-33871 [HIGH]

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PUBLISHED
2026-03-27 20:16
MODIFIED
2026-03-27 20:16
CVSS_SCORE V3
8.7
EPSS (Prob. Exploit)
1.25%
Top 30.8%
DATA SOURCES:
NVD đź”— 2026-03-27 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-10-25

> DESCRIPTION

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can trigger a Denial of Service (DoS) against a Netty HTTP/2 server by sending a flood of `CONTINUATION` frames. The server's lack of a limit on the number of `CONTINUATION` frames, combined with a bypass of existing size-based mitigations using zero-byte frames, allows an user to cause excessive CPU consumption with minimal bandwidth, rendering the server unresponsive. Versions 4.1.132.Final and 4.2.10.Final fix the issue.

> 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:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/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
Low (L)
Peu de conditions requises 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
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-770

> CWE DETAILED DESCRIPTIONS

CWE-770: Allocation of Resources Without Limits or Throttling - The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Build of Apache Camel 4.14 for Quarkus 3.27 update is now available (RHBQ 3.27.3.GA)
An update for Red Hat Build of Apache Camel 4.14 for Quarkus 3.27 update is now available (RHBQ 3.27.3.GA). The purpose of this text-only errata is to inform you about the enhancements that improve yo...
Red Hat Security Advisory: Red Hat build of Quarkus 3.20.6 release and security update
An update is now available for Red Hat build of Quarkus. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base sco...
Red Hat Security Advisory: Red Hat build of Quarkus 3.27.3 release and security update
An update is now available for Red Hat build of Quarkus. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base sco...
Red Hat Security Advisory: Red Hat AMQ Broker 7.14.0 release and security update
Red Hat AMQ Broker 7.14.0 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Sy...
Red Hat Security Advisory: RHOAI 2.25.5 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.27.1 Release.
Red Hat OpenShift Dev Spaces 3.27.1 has been released.
Red Hat Security Advisory: Streams for Apache Kafka 3.2.0 release and security update
Streams for Apache Kafka 3.2.0 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...
Red Hat Security Advisory: Red Hat AMQ Broker 7.12.7 release and security update
Red Hat AMQ Broker 7.12.7 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Sy...
Red Hat Security Advisory: Red Hat AMQ Broker 7.13.5 release and security update
Red Hat AMQ Broker 7.13.5 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring Sy...
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.6 security update
A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of I...
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.6 security update
A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1 for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of I...
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.6 security update
A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of I...
Red Hat Security Advisory: Red Hat build of Cryostat 4.2.0: new RHEL 9 container image security update
New Red Hat build of Cryostat 4.2.0 on RHEL 9 container images are now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scori...
Red Hat Security Advisory: Red Hat Data Grid 8.6.1 security update
An update for Red Hat Data Grid 8 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,...
Red Hat Security Advisory: Streams for Apache Kafka 2.9.4 release and security update
Streams for Apache Kafka 2.9.4 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...
Red Hat Security Advisory: RHOAI 2.25.11 - Red Hat OpenShift AI
Updated images are now available for Red Hat OpenShift AI.
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.8 XP 6.0.6.GA release
JBoss EAP XP 6.0.6.GA release on the EAP 8.1 base. See references for release notes.

> HISTORIQUE DES MODIFICATIONS

Première apparition
27/03/2026 20:16
Source: NVD
📊 ENRICHISSEMENT 01/04/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-770: Allocation of Resources Without Limits or Throttling - The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the ...
Total des modifications: 1 Dernière mise à jour: 7 months ago

> REFERENCES

https://github.com/netty/netty/security/advisories/GHSA-w9fj-cfpg-grvv
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