CVE-2026-56143
Last modified
CVE-2026-56143 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted request that causes excessive memory consumption, which may render the affected node unavailable.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted request that causes excessive memory consumption, which may render the affected node unavailable.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Elastic | Elasticsearch | >= 8.0.0, < 8.19.20 |
| Elastic | Elasticsearch | >= 9.0.0, < 9.3.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-56143?
How severe is CVE-2026-56143?
How do I fix CVE-2026-56143?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-56138AIL framework contains a path traversal vulnerability in the…5.3
- CVE-2026-56139Generation of Error Message Containing Sensitive Information…5.3
- CVE-2026-5614A security flaw has been discovered in Belkin F9K1015 1.00.1…8.8
- CVE-2026-56140Improper Input Validation vulnerability in Apache Camel AWS …9.8
- CVE-2026-56141In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.…9.8
- CVE-2026-56142In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.…8.8
- CVE-2026-56144Incorrect Authorization (CWE-863) in Elasticsearch can allow…6.5
- CVE-2026-56145Uncontrolled Resource Consumption (CWE-400) in Elasticsearch…6.5
- CVE-2026-56146Improper Access Control (CWE-284) in Kibana can lead to unau…5.4
- CVE-2026-56147Authorization Bypass Through User-Controlled Key (CWE-639) i…7.1
- CVE-2026-56148Uncontrolled Recursion (CWE-674) in Elasticsearch can lead t…6.5
- CVE-2026-56149Allocation of Resources Without Limits or Throttling (CWE-77…4.9
Are you affected by CVE-2026-56143?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST