Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache Druid versions before 35.0.0 (org.apache.druid:druid) use a weak fallback secret for the Kerberos authenticator when druid.auth.authenticator.kerberos.cookieSignatureSecret is not set. The secret is generated with a non-cryptographically secure random number generator, which may let an attacker predict or brute-force it and forge authentication cookies. Upgrade to version 35.0.0, which requires the cookie signature secret to be set; alternatively, configure a strong cookieSignatureSecret explicitly.
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 |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.0070, the 53rd percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:09 UTC First seen by agentprime
- 31 Oct 2026, 15:09 UTC Confirmed by OSV