# org.apache.kafka:kafka-clients (Maven) vulnerabilities

8 known vulnerabilities (1 critical, 3 high, 2 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 4.4.0 (Oct 6, 2026): no advisory affects it
- Newest unaffected release: 4.4.0 (Oct 6, 2026), the latest release
- Dependents: 277
- Releases: 87 since 0.8.2.0 (Jan 29, 2015)
- Registry: https://central.sonatype.com/artifact/org.apache.kafka/kafka-clients
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-111551: 0.10.0.0 to 4.2.1 (4.2.2 is outside it); 4.3.0 to 4.3.1 (4.3.2 is outside it)
- CVE-2026-33557: 4.1.0 to 4.1.1 (4.1.2 is outside it)
- CVE-2026-33558: 0.11.0.0 to 3.9.1 (3.9.2 is outside it); 4.0.0 (4.0.1 is outside it)
- CVE-2026-35554: 2.8.0 to 3.9.1 (3.9.2 is outside it); 4.0.0 to 4.0.1 (4.0.2 is outside it); 4.1.0 to 4.1.1 (4.1.2 is outside it)
- CVE-2025-27817: 3.1.0 to 3.9.0 (3.9.1 is outside it)
- CVE-2024-31141: 2.3.0 to 3.7.0 (3.7.1 is outside it)
- CVE-2021-38153: 2.0.0 to 2.6.2 (2.6.3 is outside it); 2.7.0 to 2.7.1 (2.7.2 is outside it); 2.8.0 (2.8.1 is outside it)
- CVE-2017-12610: 0.10.0.0 to 0.10.2.1 (0.10.2.2 is outside it); 0.11.0.0 to 0.11.0.1 (0.11.0.2 is outside it)

## Advisories (8)

### [CVE-2026-111551](https://cve.now/CVE-2026-111551): Apache Kafka: Denial of service in Kafka Streams and client deserializers via unbounded memory allocation

- Severity: High 7.5
- Published: Oct 28, 2026
- Affected: from 0.10.0.0, through 4.1.2; from 4.2.0, through 4.2.1; from 4.3.0, through 4.3.1.
- Fixed in 4.3.2 (released Oct 11, 2026, 17 days before disclosure), the first release outside every affected range (no listed fixed version clears them all).
- The latest release, 4.4.0, is not affected.

### [CVE-2026-33557](https://cve.now/CVE-2026-33557): Apache Kafka: Missing JWT token validation in OAUTHBEARER authentication

- Severity: Critical 9.1
- Published: Apr 20, 2026
- Affected: from 4.1.0, fixed in 4.1.2.
- Fixed in 4.1.2 (released Feb 24, 2026, 55 days before disclosure).
- The latest release, 4.4.0, is not affected.

### [CVE-2026-33558](https://cve.now/CVE-2026-33558): Apache Kafka, Apache Kafka Clients: Information Exposure Through Network Client Log Output

- Severity: Medium 5.3
- Published: Apr 20, 2026
- Affected: from 0.11.0, through 3.9.1; from 0.11.0, fixed in 3.9.2; from 4.0.0, fixed in 4.0.1.
- Fixed in 3.9.2 (released Feb 7, 2026, 72 days before disclosure) and 4.0.1 (released Sep 9, 2025, 223 days before disclosure).
- The latest release, 4.4.0, is not affected.

### [CVE-2026-35554](https://cve.now/CVE-2026-35554): Apache Kafka Clients: Kafka Producer Message Corruption and Misrouting via Buffer Pool Race Condition

- Severity: High 8.7
- Published: Apr 7, 2026
- Affected: from 2.8.0, through 3.9.1; from 4.0.0, through 4.0.1; from 4.1.0, through 4.1.1; from 2.8.0, fixed in 3.9.2; from 4.0.0, fixed in 4.0.2; from 4.1.0, fixed in 4.1.2.
- Fixed in 3.9.2 (released Feb 7, 2026, 59 days before disclosure), 4.0.2 (released Mar 3, 2026, 35 days before disclosure) and 4.1.2 (released Feb 24, 2026, 42 days before disclosure).
- The latest release, 4.4.0, is not affected.

### [CVE-2025-27817](https://cve.now/CVE-2025-27817): Apache Kafka Client: Arbitrary file read and SSRF vulnerability

- Severity: High 7.5
- Published: Jun 10, 2025
- Affected: from 3.1.0, fixed in 3.9.1.
- Fixed in 3.9.1 (released May 12, 2025, 29 days before disclosure).
- The latest release, 4.4.0, is not affected.

### [CVE-2024-31141](https://cve.now/CVE-2024-31141): Apache Kafka Clients: Privilege escalation to filesystem read-access via automatic ConfigProvider

- Severity: Medium 6.5
- Published: Nov 19, 2024
- Affected: from 2.3.0, through 3.5.2; from 3.6.0, through 3.6.2; from 2.3.0, fixed in 3.7.1.
- Fixed in 3.7.1 (released Jun 18, 2024, 154 days before disclosure).
- The latest release, 4.4.0, is not affected.

### [CVE-2021-38153](https://cve.now/CVE-2021-38153): Timing Attack Vulnerability for Apache Kafka Connect and Clients

- Severity: Unrated
- Published: Sep 22, 2021
- Affected: from 2.0.0, fixed in 2.6.3; from 2.7.0, fixed in 2.7.2; from 2.8.0, fixed in 2.8.1.
- Fixed in 2.6.3 (released Oct 12, 2021, 20 days after disclosure), 2.7.2 (released Oct 12, 2021, 20 days after disclosure) and 2.8.1 (released Sep 14, 2021, 8 days before disclosure).
- The latest release, 4.4.0, is not affected.

### [CVE-2017-12610](https://cve.now/CVE-2017-12610): In Apache Kafka 0.10.0.0 to 0.10.2.1 and 0.11.0.0 to 0.11.0.1, authenticated Kafka clients may use impersonation via a manually crafted…

- Severity: Unrated
- Published: Jul 26, 2018
- Affected: from 0.10.0.0, fixed in 0.10.2.2; from 0.11.0.0, fixed in 0.11.0.2.
- Fixed in 0.10.2.2 (released Jun 23, 2018, 33 days before disclosure) and 0.11.0.2 (released Nov 10, 2017, 258 days before disclosure).
- The latest release, 4.4.0, is not affected.

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