CVE-2026-59296: Micrometer StatsD and Logging meter registries line-protocol and log injection vulnerability

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-21 · updated 2026-10-16
Weakness: CWE-74

Description

Using untrusted, non-normalized input as-is for metrics data (such as metric names, tag keys, or tag values) is a dangerous antipattern that general-purpose instrumentation should never perform. Micrometer 1.17.0 Micrometer 1.16.0 - 1.16.6 Micrometer 1.15.0 - 1.15.12 Micrometer 1.14.0 - 1.14.16 Micrometer 1.9.18 and earlier

Affected products

Spring Micrometer: from 1.16.0 through 1.16.6; from 1.15.0 through 1.15.12; from 1.14.0 through 1.14.16; through 1.9.18; 1.17.0

References

https://spring.io/security/cve-2026-59296

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