Vulnerability in Apache Druid

CVE-2021-26919

Apache Druid allows users to read data from other database systems using JDBC. This functionality is to allow trusted users with the proper permissions to set up lookups or submit ingestion tasks. The MySQL JDBC driver supports certain properties, which, if left unmitigated, can allow an attacker to execute arbitrary code from a hacker-controlled malicious MySQL server within Druid server processes. This issue was addressed in Apache Druid 0.20.2

EPSS: 0.349 (98.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-26919?
CVE-2021-26919 is a high-severity vulnerability in Apache Druid. CVSS score: 8.8/10. Published 2021-03-30.
How severe is CVE-2021-26919?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-26919 known to be exploited?
12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.