CVE-2026-94449
Published:September 21, 2026
Updated:October 13, 2026
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.
Affected Packages
https://github.com/smallrye/smallrye-fault-tolerance.git (GITHUB):
Affected version(s) >=6.11.0 <6.11.4Fix Suggestion:
Update to version 6.11.4https://github.com/smallrye/smallrye-fault-tolerance.git (GITHUB):
Affected version(s) >=6.6.0-RC1 <6.9.4Fix Suggestion:
Update to version 6.9.4https://github.com/smallrye/smallrye-fault-tolerance.git (GITHUB):
Affected version(s) =7.0.0-RC1 <7.0.0Fix Suggestion:
Update to version 7.0.0https://github.com/smallrye/smallrye-fault-tolerance.git (GITHUB):
Affected version(s) >=6.10.0 <6.10.2Fix Suggestion:
Update to version 6.10.2io.smallrye:smallrye-fault-tolerance-core (JAVA):
Affected version(s) =7.0.0-RC1 <7.0.0Fix Suggestion:
Update to version 7.0.0io.smallrye:smallrye-fault-tolerance-core (JAVA):
Affected version(s) >=6.10.0 <6.10.2Fix Suggestion:
Update to version 6.10.2io.smallrye:smallrye-fault-tolerance-core (JAVA):
Affected version(s) >=6.11.0 <6.11.4Fix Suggestion:
Update to version 6.11.4io.smallrye:smallrye-fault-tolerance-core (JAVA):
Affected version(s) >=6.6.0-RC2 <6.9.4Fix Suggestion:
Update to version 6.9.4Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption
EPSS
Base Score:
0.49