CVE-2026-26931 | Elastic Metricbeat up to 8.19.12 HTTP remote_write Size memory allocation (EUVD-2026-13139)
A vulnerability labeled as problematic has been found in Elastic Metricbeat up to 8.19.12. The impacted element is the function remote_write of the component HTTP Handler. The manipulation of the argument Size results in uncontrolled memory allocation.
This vulnerability is reported as CVE-2026-26931. The attacker must have access to the local network to execute the attack. No exploit exists.