CVE-2021-26919
Apache Druid allows users to read data from other database systems using JDBC.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 35.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
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
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 35.19% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apache/druid
- Source
- security@apache.org
EPSS moved from 35.2% on 11 October 2026 to 35.2% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://lists.apache.org/thread.html/r443e2916c612fbd119839c0fc0729327d6031913a75081adac5b43ad%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/r470f8c92eb5df45f41b3ae609b6315b6c5ff51b3ceb2f09f00ca620f%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/r6bc68264170046448f823d12c17fd1fd875251d97d60869f58709872%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r7a531ec123570cb7875ff991cf115f99e9ef99a48b3cf3fa4f9d9864%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/ra85fa7d31f9bec1148ffd2e4030934927caa8bff89bca9f61f75e697%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/rd87451fce34df54796e66321c40d743a68fb4553d72e7f6f0bc62ebd%40%3Cdev.druid.apache.org%3EMailing List, Vendor Advisory
- https://lists.apache.org/thread.html/re0910cf4c784897774427fecd95912fb565a6bd06d924a55e70bbbfc%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/re4c5deb0aae4bace69844d15c9fd1699e907ebfee93bc3926474d110%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/rf3ea2a4018e87e6c45d36cf8479af7727dcc276edabd2f7cf59e0c5f%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/r443e2916c612fbd119839c0fc0729327d6031913a75081adac5b43ad%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/r470f8c92eb5df45f41b3ae609b6315b6c5ff51b3ceb2f09f00ca620f%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/r6bc68264170046448f823d12c17fd1fd875251d97d60869f58709872%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/r7a531ec123570cb7875ff991cf115f99e9ef99a48b3cf3fa4f9d9864%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/ra85fa7d31f9bec1148ffd2e4030934927caa8bff89bca9f61f75e697%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/rd87451fce34df54796e66321c40d743a68fb4553d72e7f6f0bc62ebd%40%3Cdev.druid.apache.org%3EMailing List, Vendor Advisory
- https://lists.apache.org/thread.html/re0910cf4c784897774427fecd95912fb565a6bd06d924a55e70bbbfc%40%3Ccommits.druid.apache.org%3E
- https://lists.apache.org/thread.html/re4c5deb0aae4bace69844d15c9fd1699e907ebfee93bc3926474d110%40%3Cdev.druid.apache.org%3E
- https://lists.apache.org/thread.html/rf3ea2a4018e87e6c45d36cf8479af7727dcc276edabd2f7cf59e0c5f%40%3Cdev.druid.apache.org%3E
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.