CVE-2026-94449
HIGH 7.5 ALL-YEARSA 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.
Severe if exploited (CVSS 7.5), but no confirmed exploitation. Patch on a normal cadence.
Exploitation likelihood
0.6%chance of exploitation in 30 days · 49th percentile
Impact if exploited
7.5CVSS 3.1 · HIGH · CNA
- ConfidentialityNone
- IntegrityNone
- AvailabilityHigh
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
No public exploit or proof-of-concept code is catalogued for this CVE (no ExploitDB, Nuclei, or CISA-KEV entry). It may still exist — search GitHub or check the references below.
Affected
Products Red Hat Build Of Quarkus 3.27.6.Redhat Red Hat Build Of Quarkus 3.33.4.Redhat Exploit Intelligence Red Hat Build Of Apache Camel 4 For Quarkus 3 Red Hat Build Of Apicurio Registry 3 Red Hat Fuse 7
Weakness (CWE)
- CWE-400: Uncontrolled Resource Consumption
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
All CVSS metrics
- HIGH 7.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - HIGH 7.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H