CVE-2026-26931

MEDIUM EPSS 7.7%

Published Mar 19, 20263mo ago · Modified Jun 17, 20262w ago

5.7 CVSS 3.1

Medium

Published Mar 19, 2026 3mo ago

Last Modified Jun 17, 2026 2w ago

Description

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).

CVSS Details

Base Score

5.7

Exploitability

2.1

Impact

3.6

Vector string

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector Adjacent

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

7.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-789

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.