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CVE-2026-15911— Confluent Kafka Python Improper TLS Certificate Validation

Quick assessment

Affected
confluent confluent-kafka
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Confluent Kafka Python 客户端与 HashiCorp Vault KMS 的集成可能存在不当的 TLS 证书验证问题，从而允许远程攻击者获取敏感信息。

CVSS 7.4 · High
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I. Basic Information for CVE-2026-15911

Vulnerability Information
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Vulnerability Title
Confluent Kafka Python Improper TLS Certificate Validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
confluent confluent-kafka 0 ~ 2.14.2 cpe:2.3:a:confluent:confluent-kafka:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-15911

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III. Intelligence Information for CVE-2026-15911

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IV. Related Vulnerabilities

Same weakness: CWE-295

V. Comments for CVE-2026-15911

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