Medium 6.5Published Oct 28, 2026

CVE-2026-88858Server-side expression parser denial of service

Updated under an hour ago (Oct 29, 2026, 6:40 PM ET)

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It affects Grafana OSS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Start free and add your stackFree account, 3 products Every CVE for Grafana OSS Exploited in the last 30 days

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: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-674, CWE-20, CWE-400
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GRAFANA
NVD analysis: Awaiting Analysis
Record last updated: Oct 28, 2026
First seen by InfoSec Signals: Oct 28, 2026

Affected products

Affected products

Grafana Grafana OSS grafana:oss (from the name)	from 7.4.0 through 11.6.16; from 12.0.0 through 12.2.10; from 12.3.0 through 12.3.11; from 12.4.0 through 12.4.13; from 13.0.0 through 13.0.11; from 13.1.0 through 13.1.8; from 13.2.0 through 13.2.4	CNA record
Grafana Grafana Enterprise grafana:enterprise (from the name)	from 7.4.0 through 11.6.16; from 12.0.0 through 12.2.10; from 12.3.0 through 12.3.11; from 12.4.0 through 12.4.13; from 13.0.0 through 13.0.11; from 13.1.0 through 13.1.8; from 13.2.0 through 13.2.4	CNA record

References

References

https://grafana.com/security/security-advisories/cve-2026-88858	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.