What is CVE-2026-63263?
CVE-2026-63263 is an uncontrolled resource consumption vulnerability in Elasticsearch that can lead to denial of service. An authenticated user can submit a specially crafted ES|QL query causing exponential CPU usage via data expansion. Updating Elasticsearch is required to mitigate this issue.
Azərbaycanca: CVE-2026-63263 Elasticsearch-də autentifikasiya olunmuş istifadəçinin xüsusi hazırlanmış ES|QL sorğusu vasitəsilə CPU resurslarının idarəolunmaz istehlakına səbəb olan zəiflikdir. Bu, eksponensial məlumat genişlənməsi yolu ilə xidmətin dayanmasına (denial of service) gətirib çıxara bilər. Təsirə məruz qalmamaq üçün Elasticsearch yenilənməlidir.
Related CVEs
link basis: same weakness class CWE-400; shared vendor: Elasticsearch
FAQ2
What type of attack can CVE-2026-63263 cause in Elasticsearch?
This vulnerability can lead to a denial of service attack by causing uncontrolled CPU resource consumption through exponential data expansion.
What should be done to protect against CVE-2026-63263?
Updating Elasticsearch is required to mitigate this vulnerability.
See also6
This explainer is AI-written from source data — skopnix's own reporting on this CVE; CVSS scores, vendors and versions are never invented. See NVD for the official record.