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.
Published: 2026-08-24
Score: 5.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Migrate to Apache HttpClient 5.6.x's native httpclient5-observation module, or use ObservationExecChainHandler when using HttpClient 5.x with Micrometer 1.12.0+.

Tracking

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Advisories

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History

Mon, 24 Aug 2026 10:30:00 +0000

Type Values Removed Values Added
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.
Title Micrometer Instrumentation of Apache HttpAsyncClient Denial of Service Vulnerability
Weaknesses CWE-401
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-24T14:28:42.575Z

Reserved: 2026-07-04T18:13:34.323Z

Link: CVE-2026-59295

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-24T11:16:39.780

Modified: 2026-08-24T11:16:39.780

Link: CVE-2026-59295

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-24T11:30:03Z

Weaknesses
  • CWE-401

    Missing Release of Memory after Effective Lifetime