CVE Vulnerabilities

CVE-2026-26931

Memory Allocation with Excessive Size Value

Published: Mar 19, 2026 | Modified: Mar 20, 2026

CVSS 3.x

N/A

Source:

NVD

CVSS 2.x

RedHat/V2

RedHat/V3

Ubuntu

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Additional information

NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-26931
CWE	https://cwe.mitre.org/data/definitions/789.html

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).

Weakness

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

Potential Mitigations

References

https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532

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