Description
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.
Published: 2026-09-21
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 22 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Mon, 21 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service
First Time appeared Redhat
Redhat apicurio Registry
Redhat camel Quarkus
Redhat exploit Intelligence
Redhat jboss Fuse
Redhat quarkus
Weaknesses CWE-400
CPEs cpe:/a:redhat:apicurio_registry:3
cpe:/a:redhat:camel_quarkus:3
cpe:/a:redhat:exploit_intelligence:0
cpe:/a:redhat:jboss_fuse:7
cpe:/a:redhat:quarkus:3
Vendors & Products Redhat
Redhat apicurio Registry
Redhat camel Quarkus
Redhat exploit Intelligence
Redhat jboss Fuse
Redhat quarkus
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Redhat Apicurio Registry Camel Quarkus Exploit Intelligence Jboss Fuse Quarkus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-21T17:51:45.100Z

Reserved: 2026-09-21T16:45:10.036Z

Link: CVE-2026-94449

cve-icon Vulnrichment

Updated: 2026-09-21T17:51:40.325Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-21T17:19:20.097

Modified: 2026-09-22T19:37:36.747

Link: CVE-2026-94449

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-21T16:53:24Z

Links: CVE-2026-94449 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T18:45:18Z

Weaknesses