All vulnerabilities

Servers and applications

CVE-2021-38153

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,…

Severity
Medium 5.9
Published
22 Sept 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.6.3, 2.7.2
Sources
NVD

Affected software

SoftwareAffected versions
Apache KafkaServers and applications · cpe:a:apache:kafka
  • From 2.0.0 before 2.6.3
  • From 2.7.0 before 2.7.2
  • Version 2.8.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-38153
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-38153