Is CVE-2026-59295 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-59295?

CVE-2026-59295 has a CVSS v3 severity of MEDIUM (5.9).

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CVE-2026-59295

Description

Micrometer-instrumented Apache HttpAsyncClient (4.x or 5.x) usage via MicrometerHttpClientInterceptor can leak memory unboundedly when asynchronous requests fail before receiving a response (e.g. connection resets or timeouts). Tracking state for these requests remains in memory indefinitely, and sustained failures lead to heap exhaustion and OutOfMemoryError crashes.