{"id":"CVE-2026-26931","summary":"Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service","details":"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).","aliases":["GHSA-5vrw-qjxw-89r5","GO-2026-4790"],"modified":"2026-09-11T11:47:17.074937329Z","published":"2026-03-19T17:05:57.514Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"cwe_ids":["CWE-789"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26931.json","unresolved_ranges":[{"extracted_events":[{"introduced":"8.0.0"},{"last_affected":"8.19.12"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"elastic"},"references":[{"type":"WEB","url":"https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26931.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26931"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/elastic/beats","events":[{"introduced":"2ab3a7334016f570e0bfc7e9a577a35a22e02df5"},{"fixed":"772e25e87cbdcaac9aca33e72af74e5ee8e1220a"},{"introduced":"42a721c925857c0d1f4160c977eb5f188e46d425"},{"fixed":"090edf6777335b72756841fc32203573a0cc1073"}],"database_specific":{"extracted_events":[{"introduced":"8.0.0"},{"fixed":"8.19.13"},{"introduced":"9.0.0"},{"fixed":"9.2.5"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:elastic:metricbeat:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26931.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}