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Medium severity5.9NVD Advisory· Published Sep 22, 2021· Updated Jun 17, 2026

CVE-2021-38153

CVE-2021-38153

Description

Some components in Apache Kafka use Arrays.equals to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful. Users should upgrade to 2.8.1 or higher, or 3.0.0 or higher where this vulnerability has been fixed. The affected versions include Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, and 2.8.0.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.apache.kafka:kafka_2.11Maven
>= 2.0.0, <= 2.4.1—
org.apache.kafka:kafka_2.12Maven
>= 2.0.0, < 2.6.32.6.3
org.apache.kafka:kafka_2.12Maven
>= 2.7.0, < 2.7.22.7.2
org.apache.kafka:kafka_2.12Maven
>= 2.8.0, < 2.8.12.8.1
org.apache.kafka:kafka_2.13Maven
>= 2.4.0, < 2.6.32.6.3
org.apache.kafka:kafka_2.13Maven
>= 2.7.0, < 2.7.22.7.2
org.apache.kafka:kafka_2.13Maven
>= 2.8.0, < 2.8.12.8.1
org.apache.kafka:kafka-clientsMaven
>= 2.0.0, < 2.6.32.6.3
org.apache.kafka:kafka-clientsMaven
>= 2.7.0, < 2.7.22.7.2
org.apache.kafka:kafka-clientsMaven
>= 2.8.0, < 2.8.12.8.1

Affected products

14

Patches

Vulnerability mechanics

References

21

News mentions

0

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