Bug 2521797 (CVE-2026-59295) - CVE-2026-59295 io.micrometer/micrometer-core: Micrometer Instrumentation for Apache HttpAsyncClient: Denial of Service via asynchronous request failures
Summary: CVE-2026-59295 io.micrometer/micrometer-core: Micrometer Instrumentation for ...
Keywords:
Status: NEW
Alias: CVE-2026-59295
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-24 10:39 UTC by OSIDB Bzimport
Modified: 2026-10-21 07:35 UTC (History)
85 users (show)

Fixed In Version:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:86676 0 None None None 2026-10-21 07:35:19 UTC

Description OSIDB Bzimport 2026-08-24 10:39:48 UTC 
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.
Comment 2 Jon Orris 2026-10-21 07:35:14 UTC 
This issue has been addressed in the following products:

  Streams for Apache Kafka 3.2.2

Via RHSA-2026:86676 https://access.redhat.com/errata/RHSA-2026:86676
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