Affected versions:
- Apache Parquet Java through 1.15.1
Description:
Schema parsing in the parquet-avro module of Apache Parquet 1.15.0 and previous
versions allows bad actors to execute arbitrary code.
While 1.15.1 introduced a fix to restrict untrusted packages, the default
setting of trusted packages still allows malicious classes from these packages
to be executed.
The exploit is only applicable if the client code of parquet-avro uses the
"specific" or the "reflect" models deliberately for reading Parquet files.
("generic" model is not impacted)
Users are recommended to upgrade to 1.15.2 or set the system property
"org.apache.parquet.avro.SERIALIZABLE_PACKAGES" to an empty string on 1.15.1.
Both are sufficient to fix the issue.
Credit:
Andrew Pikler (reporter)
David Handermann (reporter)
Nándor Kollár (reporter)
References:
https://lists.apache.org/thread/vr1h7dnr4jp2f1xhzzkwzcw49qgfgsyl
https://parquet.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-46762
