CVE-2021-34538

Name: CVE-2021-34538
Creator: NVD / NIST
Published: 2022-07-16T07:15:08.53+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.39%

Last modified Jun 17, 2026

CVE-2021-34538 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Apache Hive before 3.1.3 "CREATE" and "DROP" function operations does not check for necessary authorization of involved entities in the query. It was found that an unauthorized user can manipulate an existing UDF without having the privileges to do so. EPSS estimates a 1.39% chance of exploitation in the next 30 days.

Description

Apache Hive before 3.1.3 "CREATE" and "DROP" function operations does not check for necessary authorization of involved entities in the query. It was found that an unauthorized user can manipulate an existing UDF without having the privileges to do so. This allowed unauthorized or underprivileged users to drop and recreate UDFs pointing them to new jars that could be potentially malicious.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.39%

68.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Hive	< 3.1.3

References

https://lists.apache.org/thread/oqqgnhz4c6nxsfd0xstosnk0g15f7354Mailing List, Vendor Advisory
https://lists.apache.org/thread/oqqgnhz4c6nxsfd0xstosnk0g15f7354Mailing List, Vendor Advisory

Timeline

Published: Jul 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-34538?

How severe is CVE-2021-34538?

CVE-2021-34538 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.39% probability of exploitation in the next 30 days.

How do I fix CVE-2021-34538?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-34538?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST