{"cve":"CVE-2026-26931","nvd":{"published":"2026-03-19T17:16:23.320","modified":"2026-09-04T13:37:13.493","status":"Analyzed","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.7},"cwes":["CWE-789"],"references":["https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532"],"products":["elastic:metricbeat"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-26931","score":0.00192,"percentile":0.08921,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-5vrw-qjxw-89r5","url":"https://osv.dev/vulnerability/GHSA-5vrw-qjxw-89r5","summary":"Metricbeat Allocates Memory with Excessive Size Value Leading to Denial of Service","modified":"2026-09-10T03:50:37.689700777Z","packages":[{"ecosystem":"Go","name":"github.com/elastic/beats/v7","purl":"pkg:golang/github.com/elastic/beats/v7","ranges":["<7.0.0-alpha2.0.20260112100137-de072c4e371e"],"fixed":["7.0.0-alpha2.0.20260112100137-de072c4e371e"]}]},{"id":"GO-2026-4790","url":"https://osv.dev/vulnerability/GO-2026-4790","summary":"Metricbeat Allocates Memory with Excessive Size Value Leading to Denial of Service in github.com/elastic/beats","modified":"2026-05-13T03:44:31.590041216Z","packages":[{"ecosystem":"Go","name":"github.com/elastic/beats","purl":"pkg:golang/github.com/elastic/beats","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/elastic/beats/v7","purl":"pkg:golang/github.com/elastic/beats/v7","ranges":["<7.0.0-alpha2.0.20260112100137-de072c4e371e"],"fixed":["7.0.0-alpha2.0.20260112100137-de072c4e371e"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}