CVE-2026-26931CWE-789

CVE-2026-26931

Medium · published March 19, 2026

CVSS v3.1
5.7
EPSS
0%
Percentile
22.1
In the wild
Unconfirmed
What it is

Memory Allocation with Excessive Size Value (CWE-789) in the Prometheus remote_write HTTP handler in Metricbeat can lead Denial of Service via Excessive Allocation (CAPEC-130).

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00306 · 22.1th percentile
Weakness
CWE-789 · Memory Allocation with Excessive Size Value
Published
2026-03-19T21:16Z
Affected products (2)
ProductVersionsFixed in
elastic/metricbeat≥ 8.0.0, < 8.19.138.19.13
elastic/metricbeat≥ 9.0.0, < 9.2.59.2.5
References (1)
https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532 · [email protected]
EPSS history
Timeline
  • 19 MAR 17:05Z
    Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service
    cvelistv5