Apache Kafka Vulnerability CVE-2026-35554 Affects Data Confidentiality and Integrity
Summary
CERT-FR issued advisory CERTFR-2026-AVI-0449 alerting organizations to a vulnerability in Apache Kafka Clients (CVE-2026-35554). Affected versions include 2.8.x through 3.9.x (prior to 3.9.2), 4.0.x (prior to 4.0.2), and 4.1.x (prior to 4.1.2). The vulnerability allows attackers to compromise data confidentiality and integrity. Organizations are advised to obtain patches from the vendor security bulletin.
What changed
CERT-FR published a security advisory alerting to CVE-2026-35554, a vulnerability discovered in Apache Kafka that allows attackers to compromise data confidentiality and integrity. The vulnerability affects Kafka Clients in versions 2.8.x through 3.9.x (prior to 3.9.2), 4.0.x (prior to 4.0.2), and 4.1.x (prior to 4.1.2). The source of the advisory is Apache Kafka's security bulletin published on April 7, 2026.
Organizations using affected versions of Apache Kafka Clients should refer to the Apache Kafka security bulletin to obtain the available patches and apply them promptly. The advisory does not specify a compliance deadline but recommends patching as the remediation measure. Technology companies and any organizations operating Kafka messaging infrastructure should treat this as priority security guidance requiring immediate attention.
Archived snapshot
Apr 16, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
!Logo République Française
Premier Ministre S.G.D.S.N
Agence nationale
de la sécurité des
systèmes d'information
Paris, le 16 avril 2026 N° CERTFR-2026-AVI-0449 Affaire suivie par: CERT-FR
Avis du CERT-FR
Objet: Vulnérabilité dans Apache Kafka
Gestion du document
| Référence | CERTFR-2026-AVI-0449 |
| Titre | Vulnérabilité dans Apache Kafka |
| Date de la première version | 16 avril 2026 |
| Date de la dernière version | 16 avril 2026 |
| Source(s) | Bulletin de sécurité Apache Kafka cve-list du 07 avril 2026 |
Une gestion de version détaillée se trouve à la fin de ce document.
Risques
- Atteinte à l'intégrité des données
- Atteinte à la confidentialité des données
Systèmes affectés
- Kafka Clients versions 2.8.x à 3.9.x antérieures à 3.9.2
- Kafka Clients versions 4.0.x antérieures à 4.0.2
- Kafka Clients versions 4.1.x antérieures à 4.1.2
Résumé
Une vulnérabilité a été découverte dans Apache Kafka. Elle permet à un attaquant de provoquer une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Documentation
- Bulletin de sécurité Apache Kafka cve-list du 07 avril 2026
- https://kafka.apache.org/community/cve-list/
- Référence CVE CVE-2026-35554
- https://www.cve.org/CVERecord?id=CVE-2026-35554
Gestion détaillée du document
- le 16 avril 2026 Version initiale
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