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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 Red Hat Build of Apache Camel 3.33.4.redhat
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.

在 SmallRy Fault Tolerance 库中发现了一个漏洞，该库被 Quarkus 用于为微服务提供诸如重试和断路器之类的策略。当使用 ApplyGuard 或 ApplyFaultTolerance 注解时，该库在每次请求结束后未能释放内部跟踪对象。这会导致内存使用量持续增加，最终因内存不足而导致应用性能下降甚至崩溃。

CVSS 7.5 · High EPSS 1.05% · P65

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 7

VendorProduct Version RangeStatus
Red Hat Exploit Intelligence any unknown
Red Hat Red Hat Build of Apache Camel 3.33.4.redhat 3.33.4.redhat-00004< * unaffected
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 3.27.6.redhat 3.27.6.redhat-00004< * unaffected
Red Hat Red Hat build of Quarkus 3.33.4.redhat 3.33.4.redhat-00004< * unaffected
Red Hat Red Hat Fuse 7 any unaffected
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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 Red Hat Build of Apache Camel 3.33.4.redhat 3.33.4.redhat-00004 ~ * cpe:/a:redhat:apache_camel_quarkus:3.33
Red Hat Red Hat build of Quarkus 3.27.6.redhat 3.27.6.redhat-00004 ~ * cpe:/a:redhat:quarkus:3.27::el8
Red Hat Red Hat build of Quarkus 3.33.4.redhat 3.33.4.redhat-00004 ~ * cpe:/a:redhat:quarkus:3.33::el8
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 Fuse 7 - cpe:/a:redhat:jboss_fuse:7

II. Public POCs for CVE-2026-94449

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III. Intelligence Information for CVE-2026-94449

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Vendor Advisories for CVE-2026-94449 (5)

Same Patch Batch · Red Hat · 2026-09-21 · 12 CVEs total

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-2026-94184 5.3 MEDIUM Fetchmail: fetchmail: stack-based buffer overflow in ntlm authentication (fetchmail-sa-202
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

IV. Related Vulnerabilities

Same product: Red Hat Build of Apache Camel 3.33.4.redhat
Same vendor: Red Hat
Same weakness: CWE-400