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.
https://github.com/kroxylicious/kroxylicious/security/advisories/GHSA-5j25-p663-ww5r
https://github.com/kroxylicious/kroxylicious/commit/aa1b02a5f8e5bb5003f88b3160a811019cd11139
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104983