Out-of-Bounds Memory Access in OpenFeature by Grafana
CVE-2026-27880

7.5HIGH

Key Information:

Vendor

Grafana
Status
Grafana
Vendor
CVE Published:
27 March 2026

What is CVE-2026-27880?

The OpenFeature feature toggle evaluation endpoint is susceptible to reading unbounded values into memory. This flaw may lead to out-of-memory crashes, disrupting application services and potentially causing downtime. It is crucial for users of OpenFeature to apply recommended patches and updates to mitigate this risk and maintain application stability.

Affected Version(s)

Grafana Cloud v12.1.0

Grafana Cloud v12.2.0

Grafana Cloud v12.3.0

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.