CVE-2026-63144
MEDIUM
MEDIUM
Priority: 0.03
BB Relevance:
63/100
Published: 2026-07-21
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via a specially crafted search request submitted by a low-privileged authenticated user. A user with read-level index access can submit a request that triggers unbounded recursive processing within the Elasticsearch query evaluation component, causing a fatal error that terminates the affected node. In single-node deployments, this results in complete service outage; in multi-node clusters, it causes repeated node restarts and sustained availability degradation.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| elastic | elasticsearch | 8.19.0 – 8.19.19 |
References & Advisories (1)
Vendor Advisory