---
id: CVE-2026-94449
title: >-
  A flaw was found in the SmallRye Fault Tolerance library, which is used by
  Quarkus to provide strategies like retries and circuit breakers for
  microservices
summary: >-
  A flaw was found in the SmallRye Fault Tolerance library, which is used by
  Quarkus to provide strategies like retries and circuit breakers for
  microservices. The issue occurs when using the ApplyGuard or
  ApplyFaultTolerance annotations, …
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: Red Hat
product: exploit-intelligence/agent-client-rhel9
affected:
  - exploit-intelligence/agent-client-rhel9
  - quarkus-smallrye-fault-tolerance (all versions)
  - quarkus-smallrye-fault-tolerance (all versions)
  - quarkus-smallrye-fault-tolerance (all versions)
  - quarkus-smallrye-fault-tolerance (all versions)
published: '2026-09-21'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T18:17:17.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94449'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-94449'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2537502'
    label: secalert@redhat.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-21T17:51:33.511604Z'
ingestedAt: '2026-09-21T17:49:53.175Z'
---

## Overview

A flaw was found in the SmallRye Fault Tolerance library, which is used by Quarkus to provide strategies like retries and circuit breakers for microservices. The issue occurs when using the ApplyGuard or ApplyFaultTolerance annotations, where the library fails to release internal tracking objects after each request. This causes a steady increase in memory usage that eventually leads to the application slowing down and crashing due to lack of memory.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.