CVE-2026-15911

Confluent Kafka Python Improper TLS Certificate Validation

State: Published
Severity: 7.4 High
Published: Oct 1, 2026
Updated: Oct 6, 2026
Reserved: Jul 15, 2026

Description

Confluent Kafka Python client's HashiCorp Vault KMS integration could allow a remote attacker to obtain sensitive information due to improper TLS certificate validation.

Scores

CVSS	Score	Vector	Source
3.1	7.4 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N	ibm

Weaknesses

CWE-295 Improper certificate validation

Affected Products

Product	Versions
confluent-kafkaconfluent	2.14.2 and earlierAffected

References

https://support.confluent.io/hc/en-us/articles/54133146724244-CONFSA-2026-22-CVE-2026-15911-Confluent-Kafka-Python-Client-Vulnerability-TLS-Certificate-verification-disabled-by-default-in-HashiCorp-Vault-KMS-Integrationvendor-advisorypatch

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