Server-side Request Forgery (SSRF) Affecting org.apache.parquet:parquet-hadoop package, versions [1.12,1.18.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHEPARQUET-19666552
- published10 Sept 2026
- disclosed9 Sept 2026
- creditn0mi1k
Introduced: 9 Sep 2026
NewCVE-2026-73334 (opens in a new tab)How to fix?
Upgrade org.apache.parquet:parquet-hadoop to version 1.18.1 or higher.
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 by supplying a Parquet file whose stored key material contains a malicious KMS URL and relying on a deployment that does not override that URL in application configuration. When readers forward the file-controlled URL into a pluggable KmsClient, the client may contact the attacker’s endpoint with the token needed to unwrap the data keys. This can expose KMS credentials and leave the victim unable to decrypt the file safely if the token is intercepted or reused.
Workarounds
- Set
parquet.encryption.kms.instance.urlin the reader application configuration so the reader uses an application-controlled KMS URL instead of taking the URL from file key material; this prevents a file-supplied malicious KMS endpoint from receiving the KMS access token.