CVE-2026-27880

OpenFeature evaluation API reads input data with no bounds

State: Published
Severity: 7.5 High
Published: Mar 27, 2026
Updated: Aug 27, 2026
Reserved: Feb 24, 2026

Description

The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GRAFANA
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	redhat-SADP

Weaknesses

CWE-125 Out-of-bounds Read
CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
GrafanaGrafana	v12.1.0 to before v12.1.10Affected v12.2.0 to before v12.2.8Affected v12.3.0 to before v12.3.6Affected v12.4.0 to before v12.4.2Affected

References

https://grafana.com/security/security-advisories/cve-2026-27880vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-27880vdb-entry
RHBZ#2452295issue-tracking
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27880.json

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