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Back to active CVEs
Medium · CVSS 5.9CVE-2026-59295

Micrometer instrumentation of Apache HttpAsyncClient DoS vulnerabilityCVE-2026-59295

Answer in brief

CVE-2026-59295 records a Medium severity (CVSS 5.9) vulnerability in Micrometer instrumentation of Apache HttpAsyncClient DoS vulnerability. The current sources do not mark it as known exploited. The current feed maps VMware (Broadcom)/io.micrometer:micrometer-core (generic), Spring/Micrometer (generic), Spring/Micrometer (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 24, 2026Updated Aug 28, 2026Source checked Oct 9, 2026First seen by HOL Aug 24, 2026Material review Aug 28, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.9
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps VMware (Broadcom)/io.micrometer:micrometer-core (generic), Spring/Micrometer (generic), Spring/Micrometer (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
VMware (Broadcom)/io.micrometer:micrometer-coregeneric0 || 1.14.0 || 1.15.0 || 1.16.0 || 1.17.0Not reported
Spring/Micrometergeneric1.17.0 || 1.16.0 || 1.15.0 || 1.14.0 || 0Not reported
Spring/Micrometergeneric1.17.0 || >=1.16.0 <=1.16.6 || >=1.15.0 <=1.15.12 || >=1.14.0 <=1.14.16 || >=0 <=1.9.18Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for VMware (Broadcom)/io.micrometer:micrometer-core, Spring/Micrometer, Spring/Micrometer.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 24, 2026

Sources and claim methodology

  • Source referencespring.io
  • GitHub security advisorygithub.com
Upstream source description

It is possible for outbound HTTP requests using a Micrometer-instrumented client to cause a denial-of-service (DoS) condition due to an unbounded memory leak. 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

Quoted source text, attributed separately from HOL analysis.

Related CVEs

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  • Apache Camel Karavan: project file name path traversal when committing a project to GitSame generic ecosystem
  • Apache Camel Karavan: unvalidated Kubernetes resources applied from a project's kubernetes.yamlSame generic ecosystem
  • Envira Gallery Lite < 1.16.2 Missing Authorization via Gallery Conversion REST EndpointSame generic ecosystem
  • WordPress Quiz And Survey Master plugin <= 11.2.7 - PHP Object Injection vulnerabilitySame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-401
Source
CVE List V5
Source checked
Oct 9, 2026
References
2 linked sources
Open source record