Server-side expression parser denial of service

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-88858
StatePUBLISHED
AssignerGRAFANA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 17:18:45 UTC
Updated2026-10-28 17:18:45 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

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

Problem Types: CWE-20 | CWE-400 | CWE-674 | CWE-674 CWE-674 | CWE-20 CWE-20 | CWE-400 CWE-400

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Grafana Grafana OSS affected 7.4.0 11.6.16 semver Not specified
CNA Grafana Grafana OSS affected 12.0.0 12.2.10 semver Not specified
CNA Grafana Grafana OSS affected 12.3.0 12.3.11 semver Not specified
CNA Grafana Grafana OSS affected 12.4.0 12.4.13 semver Not specified
CNA Grafana Grafana OSS affected 13.0.0 13.0.11 semver Not specified
CNA Grafana Grafana OSS affected 13.1.0 13.1.8 semver Not specified
CNA Grafana Grafana OSS affected 13.2.0 13.2.4 semver Not specified
CNA Grafana Grafana Enterprise affected 7.4.0 11.6.16 semver Not specified
CNA Grafana Grafana Enterprise affected 12.0.0 12.2.10 semver Not specified
CNA Grafana Grafana Enterprise affected 12.3.0 12.3.11 semver Not specified
CNA Grafana Grafana Enterprise affected 12.4.0 12.4.13 semver Not specified
CNA Grafana Grafana Enterprise affected 13.0.0 13.0.11 semver Not specified
CNA Grafana Grafana Enterprise affected 13.1.0 13.1.8 semver Not specified
CNA Grafana Grafana Enterprise affected 13.2.0 13.2.4 semver Not specified

References

ReferenceSourceLinkTags
grafana.com/security/security-advisories/cve-2026-88858 [email protected] grafana.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mukul Goyal (en)

© CVE.report 2026

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