Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Parquet Java's parquet-avro module, org.apache.parquet:parquet-avro versions before 1.15.2, can be made to execute arbitrary code when it parses an Avro schema stored in a Parquet file's metadata. The source says that 1.15.1's restriction to untrusted packages still leaves malicious classes from the default trusted packages executable, and that the issue only affects client code that deliberately uses the "specific" or "reflect" models, not "generic". Upgrade to 1.15.2, or on 1.15.1 set the system property org.apache.parquet.avro.SERIALIZABLE_PACKAGES to an empty string.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.1 | High | 4.0 | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/S:N/RE:M/U:Amber | CNA (apache) |
- CISA KEV Not listed.
- EPSS 0.016, the 76th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:17 UTC First seen by agentprime
- 31 Oct 2026, 14:17 UTC Confirmed by OSV