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CVE-2021-41561

26
FAUCET Score

CVE-2021-41561 is an Improper Input Validation vulnerability affecting Apache Parquet-MR versions 1.9.0 and later. An unauthenticated attacker can exploit this flaw by crafting malicious Parquet files, leading to a Denial of Service (DoS) condition. This vulnerability carries a CVSS score of 7.5 (High), indicating a significant impact on availability with low attack complexity. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.11.2CPE matchmatch criteria
cpe:2.3:a:apache:parquet_java:*:*:*:*:*:*:*:*
>= 1.12.0, < 1.12.2CPE matchmatch criteria
cpe:2.3:a:apache:parquet_java:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.05%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0305 is in the 75th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.parquet:parquetFixed in: 1.12.2
mavenpatch availablevia ghsa
Product: org.apache.parquet:parquetFixed in: 1.11.2

Vendor Advisories (1)

mavenGHSA-gc67-crq6-hgh5high

Improper Input Validation in Parquet-MR

Jan 6, 2022

References

lists.apache.org / thread/1bjlscbqtfzl160hrm9lnpjpppp5z3zr
Mailing ListVendor Advisory
openwall.com / lists/oss-security/2021/12/20/1
Mailing ListThird Party Advisory