CVE-2026-26931

Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service

CVSS 3.1 5.7 MEDIUMEUVD CVSS 3.1 5.7 CVSS 3.1 · [email protected] · Secondary 5.7 MEDIUMCVSS_V3 Publisher rating MODERATEFixed by github.com/elastic/beats/v7 7.0.0-alpha2.0.20260112100137-de072c4e371eosv · severity unknownFixed by github.com/elastic/beats/v7 7.0.0-alpha2.0.20260112100137-de072c4e371eKEV status unknown

Original advisory

cve-program · CVE-2026-26931

Published

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).

Read the publisher's advisory

euvd · EUVD-2026-13139

Published

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).

Read the publisher's advisory

nvd · CVE-2026-26931

Published

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).

Read the publisher's advisory

osv · GHSA-5vrw-qjxw-89r5

Published

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).

Read the publisher's advisory

osv · GO-2026-4790

Published

Metricbeat Allocates Memory with Excessive Size Value Leading to Denial of Service in github.com/elastic/beats

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-26931

Published

Metricbeat

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "product": "Metricbeat",
                    "vendor": "Elastic",
                    "versions": [
                        {
                            "lessThanOrEqual": "8.19.12",
                            "status": "affected",
                            "version": "8.0.0",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-13139

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Mar 19, 2026, 5:05:57 PM

dateUpdated: Mar 19, 2026, 5:20:38 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-26931

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-789

Original publisher date fields

published: 2026-03-19T17:16:23.320

lastModified: 2026-09-04T13:37:13.493

1 source CPE criteria · context only

cpe:2.3:a:elastic:metricbeat:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-5vrw-qjxw-89r5

Published

github.com/elastic/beats/v7

SEMVER · introduced 0 → fixed 7.0.0-alpha2.0.20260112100137-de072c4e371e

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2026-4790

Published

github.com/elastic/beats

SEMVER · introduced 0

github.com/elastic/beats/v7

SEMVER · introduced 0 → fixed 7.0.0-alpha2.0.20260112100137-de072c4e371e

Original source record · Cite this exact observation · Complete original publisher JSON