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CVE-2026-26931

MEDIUM CVSS 3.1: 5.7 EPSS 0.02%
Updated Mar 20, 2026
Prometheus
Parameter Value
CVSS 5.7 (MEDIUM)
Type CWE-789
Vendor Prometheus
Public PoC No

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).

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

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