CVE-2026-88858

A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://grafana.com/security/security-advisories/cve-2026-88858

Configurations

No configuration.

History

28 Oct 2026, 17:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 17:18

Updated : 2026-10-29 15:29

NVD link : CVE-2026-88858

Mitre link : CVE-2026-88858

CVE.ORG link : CVE-2026-88858

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-400

Uncontrolled Resource Consumption

CWE-674

Uncontrolled Recursion

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