CVE-2026-59296: Spring Micrometer

Medium severity, CVSS 5.9. EPSS: 0.3% chance of exploitation in the next 30 days.

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: version 1.17.0 only; from 1.16.0, up to and including 1.16.6; from 1.15.0, up to and including 1.15.12; from 1.14.0, up to and including 1.14.16; up to and including 1.9.18

Published 2026-08-21. Last modified 2026-08-28.