CVE-2026-94449
Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service
CVSS Score
7.5
EPSS Score
0.6%
EPSS Percentile
50th
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.
| CWE | CWE-400 |
| Vendor | red hat |
| Product | red hat build of apache camel 3.33.4.redhat |
| Published | Sep 21, 2026 |
| Last Updated | Nov 6, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Build of Apache Camel 3.33.4.redhat
All versions affected Red Hat / Red Hat build of Quarkus 3.27.6.redhat
All versions affected Red Hat / Red Hat build of Quarkus 3.33.4.redhat
All versions affected Red Hat / Exploit Intelligence
All versions affected Red Hat / Red Hat build of Apache Camel 4 for Quarkus 3
All versions affected Red Hat / Red Hat build of Apicurio Registry 3
All versions affected Red Hat / Red Hat Fuse 7
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:83082 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:83520 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:83670 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-94449 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2537502
Credits
This issue was discovered by Jan (Red Hat).