What’s Vulnerable › Vulnerabilities

CVE-2026-105941: Kroxylicious-kms-provider-azure-key-vault-kms: streams for apache kafka kroxylicious: azure key vault ssrf exfiltrates bearer token via untrusted edek vaultname

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-20
• Weakness: CWE-918

Description

The Azure Key Vault KMS provider in Kroxylicious accepts an untrusted vaultName from wire-deserialized EDEK bytes without format validation, enabling SSRF that exfiltrates the proxy's Azure bearer token to an attacker-controlled host. Token replay against the real Key Vault defeats the entire record-encryption trust model.

Affected products

• Red Hat streams for Apache Kafka 3: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-105941
• https://bugzilla.redhat.com/show_bug.cgi?id=2510876
• https://github.com/kroxylicious/kroxylicious/commit/aa1b02a5f8e5bb5003f88b3160a811019cd11139
• https://github.com/kroxylicious/kroxylicious/security/advisories/GHSA-5j25-p663-ww5r

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