Host Validation Bypass

Apache Parquet is vulnerable to host validation bypass. The vulnerability is due to the pluggable KmsClient implementation not performing host validation for a file‑controlled KMS URL, where the URL from the Parquet file is forwarded without checks and a malicious actor can inject a hostile host,...

CVE-2026-73334

A flaw was found in Apache Parquet Hadoop. When processing a Parquet file, if the Key Management Service KMS Uniform Resource Locator URL is controlled by the file and not explicitly set by the application, a vulnerability can arise. An attacker could craft a malicious Parquet file to direct a KM...

CVE-2026-73334

Potential problem for users of the org.apache.parquet.crypto.keytools package in Apache Parquet, versions 1.12 to 1.18. This package enables users to encrypt Parquet files via an envelope encryption mechanism that wraps encrypts data keys via a Key Management Service KMS. On the reader side, the...

CVE-2026-73334 Apache Parquet Hadoop: File-controlled KMS URL is forwarded to pluggable KmsClient that skips host validation

Potential problem for users of the org.apache.parquet.crypto.keytools package in Apache Parquet, versions 1.12 to 1.18. This package enables users to encrypt Parquet files via an envelope encryption mechanism that wraps encrypts data keys via a Key Management Service KMS. On the reader side, the...

CVE-2026-73334 Apache Parquet Hadoop: File-controlled KMS URL is forwarded to pluggable KmsClient that skips host validation

Potential problem for users of the org.apache.parquet.crypto.keytools package in Apache Parquet, versions 1.12 to 1.18. This package enables users to encrypt Parquet files via an envelope encryption mechanism that wraps encrypts data keys via a Key Management Service KMS. On the reader side, the...

Server-side Request Forgery (SSRF)

Overview Affected versions of this package are vulnerable to Server-side Request Forgery SSRF through FileKeyUnwrapper in parquet-hadoop/src/main/java/org/apache/parquet/crypto/keytools/FileKeyUnwrapper.java. An attacker can make a reader send its KMS access token to an attacker-controlled host b...

CVE-2026-73334: Improper Input Validation

Potential problem for users of the org.apache.parquet.crypto.keytools package in Apache Parquet, versions 1.12 to 1.18. This package enables users to encrypt Parquet files via an envelope encryption mechanism that wraps encrypts data keys via a Key Management Service KMS. On the reader side, the...