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Kafka 3.0 vulnerabilities

7 known CVEs affect the 3.0 line of Kafka.

8.8 max CVSS

Fixed in

3.0.2
Check your versionkafka-topics.sh --version

CVEs affecting 3.0

CVE Title CVSS Exploited EPSS Published
CVE-2025-27818 Apache Kafka: Possible RCE attack via SASL JAAS LdapLoginModule configuration 8.8 — 2025-06-10
CVE-2026-35554 Apache Kafka Clients: Kafka Producer Message Corruption and Misrouting via Buffer Pool Race Condition 8.7 — 2026-04-07
CVE-2022-34917 Unauthenticated clients may cause OutOfMemoryError on Apache Kafka Brokers 7.5 — 2022-09-20
CVE-2025-27819 Apache Kafka: Possible RCE/Denial of service attack via SASL JAAS JndiLoginModule configuration 7.5 — 2025-06-10
CVE-2024-31141 Apache Kafka Clients: Privilege escalation to filesystem read-access via automatic ConfigProvider 6.5 — 2024-11-19
CVE-2024-56128 Apache Kafka: SCRAM authentication vulnerable to replay attacks when used without encryption 5.3 — 2024-12-18
CVE-2026-33558 Apache Kafka, Apache Kafka Clients: Information Exposure Through Network Client Log Output 5.3 — 2026-04-20

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Weekly exploited-vulnerability digest

The KEV additions that matter for self-hosted servers, once a week. No other mail.

Data: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (see EPSS at https://www.first.org/epss), endoflife.date. Software list: awesome-selfhosted (CC BY-SA 3.0).