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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
VMware (Broadcom) io.micrometer:micrometer-core affected
Version Status Constraints
0 affected ≤ 1.9.18
1.14.0 affected ≤ 1.14.16
1.15.0 affected ≤ 1.15.12
1.16.0 affected ≤ 1.16.6
1.17.0 affected —
1.9.19 unaffected —
1.14.17 unaffected —
1.15.13 unaffected —
1.16.7 unaffected —
1.16.6.1 unaffected —
1.17.1 unaffected —
1.17.0.1 unaffected —

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the 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+.

References
Link Providers
https://github.com/spring-projects/security-advisories/security/advisories/GHSA-747c-jhq3-w433 cve-icon cve-icon
https://spring.io/security/cve-2026-59295 cve-icon cve-icon
History

Mon, 24 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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'}

Projects

Sign in to view the affected projects.

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

Updated: 2026-08-24T14:28:39.220Z

cve-icon NVD

Status : Received

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

Modified: 2026-08-24T15:16:38.237

Link: CVE-2026-59295

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses