> CVE-2026-42586 [MEDIUM]

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PUBLISHED
2026-05-13 19:17
MODIFIED
2026-05-13 19:17
CVSS_SCORE V3
6.8
EPSS (Prob. Exploit)
0.22%
Top 87.8%
DATA SOURCES:
NVD đź”— 2026-05-13 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 OSV đź”— 2026-11-02

> DESCRIPTION

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the Netty Redis codec encoder (RedisEncoder) writes user-controlled string content directly to the network output buffer without validating or sanitizing CRLF (\r\n) characters. Since the Redis Serialization Protocol (RESP) uses CRLF as the command/response delimiter, an attacker who can control the content of a Redis message can inject arbitrary Redis commands or forge fake responses. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.

> AFFECTED_PRODUCTS

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

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
EXPLOITABILITY
2.5
IMPACT
4.2

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
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
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-93

> CWE DETAILED DESCRIPTIONS

CWE-93: Improper Neutralization of CRLF Sequences - The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Build of Apache Camel 4.18.1.P1 for Spring Boot release.
Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot patch release and security update is now available. Red Hat Product Security has rated this update as having a security impact of Important. A...
Red Hat Security Advisory: Red Hat Data Grid 8.6.2 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,...

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Netty: CRLF Injection in Netty Redis Codec Encoder

AFFECTED PACKAGES:
Unknown / Unknown
196 versions affected
ALIASES:
GHSA-rgrr-p7gp-5xj7

> HISTORIQUE DES MODIFICATIONS

Première apparition
13/05/2026 19:17
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection') - The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutr...
Nouvelle valeur:
CWE-93: Improper Neutralization of CRLF Sequences - The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectl...
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection') - The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutr...
Total des modifications: 2 Dernière mise à jour: 6 days ago

> REFERENCES

https://github.com/netty/netty/security/advisories/GHSA-rgrr-p7gp-5xj7
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