CVE-2026-94449— Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service
Quick assessment
Affected
Red Hat Exploit Intelligence
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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
Affected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Exploit Intelligence | any |
unknown |
| Red Hat | Red Hat build of Apache Camel 4 for Quarkus 3 | any |
affected |
| Red Hat | Red Hat build of Apicurio Registry 3 | any |
affected |
| Red Hat | Red Hat build of Quarkus | any |
affected |
| Red Hat | Red Hat Fuse 7 | any |
affected |
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I. Basic Information for CVE-2026-94449
Vulnerability Information
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Vulnerability Title
Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Exploit Intelligence | - |
cpe:/a:redhat:exploit_intelligence:0
|
|
| Red Hat | Red Hat build of Apache Camel 4 for Quarkus 3 | - |
cpe:/a:redhat:camel_quarkus:3
|
|
| Red Hat | Red Hat build of Apicurio Registry 3 | - |
cpe:/a:redhat:apicurio_registry:3
|
|
| Red Hat | Red Hat build of Quarkus | - |
cpe:/a:redhat:quarkus:3
|
|
| Red Hat | Red Hat Fuse 7 | - |
cpe:/a:redhat:jboss_fuse:7
|
|
II. Public POCs for CVE-2026-94449
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-94449 (2)
Same Patch Batch · Red Hat · 2026-09-21 · 13 CVEs total
| CVE-2026-92574 | 8.8 HIGH | Cri-o: cri-o checkpoint restore bypasses destination security context |
| CVE-2026-80110 | 8.1 HIGH | Pki-core: dogtag pki v2 rest acl filter's reverse-lexicographic tie-break lets a ca agent |
| CVE-2026-15801 | 8.0 HIGH | Cri-o: cri-o: insufficient validation during container checkpoint restore |
| CVE-2026-75939 | 7.4 HIGH | Openshift/oc-mirror: release signature verification: openpgp signatureerror checked before |
| CVE-2026-94368 | 7.1 HIGH | Noobaa-core: noobaa-core: presigned put url escalation to copyobject via unsigned x-amz-co |
| CVE-2026-94215 | 5.5 MEDIUM | Keycloak-services: keycloak-services: cross-realm client read/write via request-level cach |
| CVE-2026-93433 | 5.5 MEDIUM | Libstoragemgmt: libstoragemgmt: denial of service via stack buffer overflow in scsi vpd pa |
| CVE-2026-94213 | 4.9 MEDIUM | Keycloak-services: keycloak-services: authorization services policy evaluation endpoint le |
| CVE-2026-92382 | 4.1 MEDIUM | Usbredir: usbredir: unbounded iso_packet_desc[] index in usbredirhost_iso_packet() leads t |
| CVE-2026-94217 | 3.5 LOW | Keycloak-services: keycloak-services: uma scope merge across resource owners via resource |
| CVE-2026-94218 | 3.1 LOW | Keycloak-services: keycloak-services: 2fa setup enforcement bypass via authentication sess |
| CVE-2026-94184 | Fetchmail: fetchmail: stack-based buffer overflow in ntlm authentication (fetchmail-sa-202 |
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V. Comments for CVE-2026-94449
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