CVE-2026-26931

mediumpriority · track · 0EPSS 0.002 · 9 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (9th) EPSS

CVSS 5.7 · medium

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-28

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).

cvss

Technical severity, 0–10. One row per scoring source.

5.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.7mediumAV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.7mediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.7mediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · security@elastic.coexploitability 2.1 · impact 3.6

v3.15.7mediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.15.2mediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-789USCWE-789USCWE-789US

affected products (8)

Products and version ranges known to be affected.

Elastic Metricbeat≤ 8.0.0 ≤8.19.12enisa_euvdEU
Elastic NV Metricbeat8.0.0 → 8.19.13fstec_bduRU
Elastic NV Metricbeat9.0.0 → 9.2.5fstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 8.0fstec_bduRU
elastic metricbeat8.0.0 → 8.19.13nvdUScpe:2.3:a:elastic:metricbeat:*:*:*:*:*:*:*:*
elastic metricbeat9.0.0 → 9.2.5nvdUScpe:2.3:a:elastic:metricbeat:*:*:*:*:*:*:*:*
Go github.com/elastic/beatsall versionsosvUSpkg:golang/github.com/elastic/beats
Go github.com/elastic/beats/v7< 7.0.0-alpha2.0.20260112100137-de072c4e371eosvUSpkg:golang/github.com/elastic/beats/v7

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-5vrw-qjxw-89r5Metricbeat Allocates Memory with Excessive Size Value Leading to Denial of Service2026-03-19ghsa · osvUS
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).
GO-2026-4790Metricbeat Allocates Memory with Excessive Size Value Leading to Denial of Service in github.com/elastic/beats2026-04-07vendor · osvUS
Metricbeat Allocates Memory with Excessive Size Value Leading to Denial of Service in github.com/elastic/beats

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd NVD CVE.org MITRE

published 2026-03-19modified 2026-09-04

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan