CVE-2026-94449

Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service

Published Sep 21, 2026 CVSS 3.1 · 7.5 High EPSS 1.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Redhat apache Camel Quarkus
CPEs cpe:/a:redhat:apache_camel_quarkus:3.33
Vendors & Products Redhat apache Camel Quarkus
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:quarkus:3 cpe:/a:redhat:quarkus:3.27::el8
References
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 6, 2026, 12:01 AM
Reserved
Sep 21, 2026, 4:45 PM
Status
Awaiting Analysis
Published
Sep 21, 2026, 5:19 PM
Modified
Nov 6, 2026, 1:18 AM
Severity
Important
Public date
Sep 21, 2026, 4:53 PM