CVE-2026-27880
Modified Modified - Updated After Analysis
Unbounded Memory Read in OpenFeature Causes Out-of-Memory Crash

Publication date: 2026-03-27

Last updated on: 2026-05-10

Assigner: Grafana Labs

Description
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
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Meta Information
Published
2026-03-27
Last Modified
2026-05-10
Generated
2026-06-16
AI Q&A
2026-03-27
EPSS Evaluated
2026-06-14
NVD
CVE-2026-27880
EUVD
EUVD-2026-16598
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
grafana grafana From 12.1.10 (inc) to 12.2.0 (exc)
grafana grafana From 12.2.8 (inc) to 12.3.0 (exc)
grafana grafana From 12.3.6 (inc) to 12.4.0 (exc)
grafana grafana to 12.1.0 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.
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Executive Summary

This vulnerability exists in the OpenFeature feature toggle evaluation endpoint, which reads unbounded values into memory. Because it does not limit the size of the input, it can cause the system to consume excessive memory, potentially leading to out-of-memory crashes.

Impact Analysis

The primary impact of this vulnerability is that it can cause out-of-memory crashes in the affected system. This means that the system could become unstable or unavailable, leading to potential downtime or disruption of services.

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