What’s Vulnerable › Vulnerabilities
CVE-2026-78588: Allocation of Resources Without Limits or Throttling in Filebeat Leading to Denial of Service
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-02 · updated 2026-09-03
- Weakness: CWE-770
Description
Allocation of Resources Without Limits or Throttling (CWE-770) in Filebeat can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker able to reach the Filebeat HTTP ingestion endpoint could send specially crafted compressed requests that exhaust the memory resources of the Filebeat process.
Affected products
- Elastic Filebeat: from 8.0.0 before 8.19.18; from 9.0.0 before 9.3.1 — fixed in 8.19.18, 9.3.1
How to fix
Upgrade to a fixed version: Elastic Filebeat 8.19.18, 9.3.1. Check the vendor advisory for mitigations.
References
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