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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Grafana Grafana OSS unaffected
Version Status Constraints
7.4.0 affected ≤ 11.6.16
12.0.0 affected ≤ 12.2.10
12.3.0 affected ≤ 12.3.11
12.4.0 affected ≤ 12.4.13
13.0.0 affected ≤ 13.0.11
13.1.0 affected ≤ 13.1.8
13.2.0 affected ≤ 13.2.4
Grafana Grafana Enterprise unaffected
Version Status Constraints
7.4.0 affected ≤ 11.6.16
12.0.0 affected ≤ 12.2.10
12.3.0 affected ≤ 12.3.11
12.4.0 affected ≤ 12.4.13
13.0.0 affected ≤ 13.0.11
13.1.0 affected ≤ 13.1.8
13.2.0 affected ≤ 13.2.4

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://grafana.com/security/security-advisories/cve-2026-88858 cve-icon cve-icon
History

Wed, 28 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Grafana
Grafana grafana
Grafana grafana Enterprise
Vendors & Products Grafana
Grafana grafana
Grafana grafana Enterprise

Wed, 28 Oct 2026 17:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Server-side expression parser denial of service
Weaknesses CWE-20
CWE-400
CWE-674
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GRAFANA

Published:

Updated: 2026-10-28T16:50:17.291Z

Reserved: 2026-09-10T10:30:46.142Z

Link: CVE-2026-88858

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-28T17:18:45.967

Modified: 2026-10-28T17:18:45.967

Link: CVE-2026-88858

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T19:30:14Z

Weaknesses