{"apiVersion":"1.0","identifier":"CVE-2026-72636","description":"Uncontrolled Recursion (CWE-674) in the Elasticsearch wildcard matching helper can lead to a denial of service via Excessive Allocation (CAPEC-130). The matcher used to resolve wildcard patterns against names is implemented recursively and had no bound on recursion depth or on the total number of match operations performed. A search request containing a wildcard pattern with a large number of wildcard groups, evaluated against a sufficiently long name, exhausts the thread stack. Elasticsearch treats a stack overflow as an unrecoverable condition and shuts the node down, so the request terminates the affected node rather than failing gracefully.","publishedAt":"2026-08-13T20:17:24","lastModifiedAt":"2026-08-28T15:32:26","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72636","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","epssProbability":0.00294,"riskScore":0.67,"affectedProduct":"Elasticsearch","affectedVersions":"unknown","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72636","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72636","en":"https://www.redsauce.net/en/cves/CVE-2026-72636","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72636","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72636","de":"https://www.redsauce.net/de/cves/CVE-2026-72636","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72636","el":"https://www.redsauce.net/el/cves/CVE-2026-72636"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72636"}}