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Fencer Vulns
high 7.5

CVE-2021-41561 json

Apache Parquet-MR potential DoS in case of malicious Parquet file

published 2021-12-20 4 y ago modified 2026-06-17 4 mo ago also GHSA-gc67-crq6-hgh5 , EUVD-2022-0600

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Improper Input Validation vulnerability in Parquet-MR of Apache Parquet allows an attacker to DoS by malicious Parquet files. This issue affects Apache Parquet-MR version 1.9.0 and later versions.

Patch / fix

  • maven org.apache.parquet:parquet 1.11.2, 1.12.2
  • apache parquet_java 1.11.2, 1.12.2

Exploit prediction

3.15% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.parquet:parquet
>=1.12.0, <1.12.2
<1.11.2
1.12.2
1.11.2

Affected products

  • Apache Software Foundation Apache Parquet

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.