{"apiVersion":"1.0","identifier":"CVE-2026-72678","description":"Elasticsearch does not validate a size value taken from a user-supplied input before that value is used to reserve memory for an internal data structure. An authenticated user holding only read privileges can submit a single small crafted request to a product API endpoint that causes the node to attempt an excessively large allocation. The resulting memory exhaustion raises a fatal error that terminates the Elasticsearch node process, causing a denial of service for the affected node and degrading cluster health. The defect is not volumetric, so a single request is sufficient regardless of the heap size configured on the target node.","publishedAt":"2026-08-13T20:17:28","lastModifiedAt":"2026-08-28T15:32:26","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72678","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","epssProbability":0.0029,"riskScore":0.67,"affectedProduct":"Elasticsearch","affectedVersions":"unknown","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72678","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72678","en":"https://www.redsauce.net/en/cves/CVE-2026-72678","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72678","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72678","de":"https://www.redsauce.net/de/cves/CVE-2026-72678","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72678","el":"https://www.redsauce.net/el/cves/CVE-2026-72678"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72678"}}