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PUBLISHED

2026-07-29 18:16

MODIFIED

2026-07-29 18:16

CVSS_SCORE V3

8.7

EPSS (Prob. Exploit)

0.46%

Top 60.1%

DATA SOURCES:

NVD 🔗 2026-07-29 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02

> DESCRIPTION

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the `Bzip2Decoder` handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [`Bzip2BlockDecompressor.read()`]. This issue has been fixed in versions 4.1.136.Final and 4.2.16.Final.

> 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-835

> CWE DETAILED DESCRIPTIONS

CWE-835: Loop with Unreachable Exit Condition - The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

> RED HAT SECURITY ADVISORIES

RHSA-2026:54435 IMPORTANT

Red Hat Security Advisory: Streams for Apache Kafka 3.2.1 release and security update

Streams for Apache Kafka 3.2.1 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...

RHSA-2026:69296 IMPORTANT

Red Hat Security Advisory: Red Hat Data Grid 8.6.3 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,...

RHSA-2026:90321 CRITICAL

Red Hat Security Advisory: Red Hat OpenShift Dev Spaces 3.31.0 Release.

Red Hat OpenShift Dev Spaces 3.31.0 has been released.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Netty Bzip2Decoder: Infinite Loop in RLE State Machine Leads to Event-Loop Thread Hang

AFFECTED PACKAGES:

Unknown / Unknown

202 versions affected

ALIASES:

GHSA-558v-64gr-wgg4

> HISTORIQUE DES MODIFICATIONS

Première apparition

29/07/2026 18:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:59

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') - The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Nouvelle valeur: