Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Elasticsearch versions before 7.17.21 and from 8.0.0 before 8.13.3 are affected. An attacker who can send a specially crafted query that uses an SQL function can trigger unbounded resource allocation, causing an OutOfMemoryError and a crash. Upgrade to 7.17.21 or 8.13.3, 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 |
|---|---|---|---|---|
| 6.5 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CNA (elastic) |
- CISA KEV Not listed.
- EPSS 0.0065, the 51st percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:11 UTC First seen by agentprime
- 31 Oct 2026, 15:11 UTC Confirmed by OSV