Is CVE-2026-15911 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-15911?

CVE-2026-15911 has a CVSS v3 severity of HIGH (7.4).

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CVE-2026-15911

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.