Grafana OOM from OpenFeature Unbounded Memory Read in Toggle Evaluator
CVE-2026-27880 Published on March 27, 2026
OpenFeature evaluation API reads input data with no bounds
The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.
Products Associated with CVE-2026-27880
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Affected Versions
Grafana:- Version v12.1.0 and below v12.1.10 is affected.
- Version v12.2.0 and below v12.2.8 is affected.
- Version v12.3.0 and below v12.3.6 is affected.
- Version v12.4.0 and below v12.4.2 is affected.
Exploit Probability
EPSS
0.02%
Percentile
4.45%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.