CVE-2026-102409
Elasticsearch: denial of service
- Risk score
- 44/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 6 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Uncontrolled Recursion (CWE-674) in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation (CAPEC-130).
- Affected
- Elasticsearch
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Story map
At a glance
Elasticsearch: Yellow, plan it in. Incorrect Authorization (CWE-863) in Elasticsearch can lead to Privilege Escalation via a delegated administrative privilege whose scope is not fully enforced during authorization checks. Elasticsearch contains an incorrect authorization weakness in a configurable, non-default privilege that lets an administrator dele…
The flaws
- CVE-2026-102409: Denial of service (CVSS 6.5 · EPSS 0%)
- CVE-2026-103007: Incorrect authorisation can lead to privilege escalation (CVSS 7.2 · EPSS 0%)
- CVE-2026-82294: Denial of service (CVSS 6.5 · EPSS 0%)
- CVE-2026-82300: Denial of service (CVSS 6.5 · EPSS 0%)
The fix
Fix: Apply the vendor's security update; see the linked advisory.
Who is exposed: Elasticsearch
Where it stands
- No known exploitation
Connects to
- Same weakness: CWE-674 (CWE-674). 56 other warnings in 30 days
- Same product: Earlier Elasticsearch warnings. 13 in the last 90 days
Why it is Yellow
- CVSS 6.5 medium
References
Original description
Uncontrolled Recursion (CWE-674) in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation (CAPEC-130).
Last activity 6 Oct 2026. Patch Forecast updates every hour.