Resource exhaustion in Elasticsearch - CVE-2025-68390
Published: December 19, 2025
Vulnerability identifier: #VU120207
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-68390
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when restoring snapshot data. A remote user with snapshot restore privileges can trigger memory exhaustion and perform a denial of service (DoS) attack.
Affected software
Elasticsearch
IBM Watson Discovery for IBM Cloud Pak for Data
watsonx Assistant Cartridge
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component
IBM Watson Discovery for IBM Cloud Pak for Data
watsonx Assistant Cartridge
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component
How to mitigate CVE-2025-68390
Install updates from vendor's website.
Elasticsearch - addressed in versions 8.19.8, 9.1.8, 9.2.2
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.3.1
watsonx Assistant Cartridge - update to 5.4
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component - update to 5.4
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.3.1
watsonx Assistant Cartridge - update to 5.4
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component - update to 5.4