Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache Druid versions before 30.0.1 let users with certain permissions supply MySQL JDBC properties that are not on the administrator's allow list, by using a specially crafted JDBC connection string. An attacker with permission to configure JDBC connections (such as for lookups or ingestion tasks) could use this to read data from other database systems. Upgrade to Apache Druid 30.0.1 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 3.1 | Low | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0063, the 50th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:13 UTC First seen by agentprime
- 31 Oct 2026, 15:13 UTC Confirmed by OSV