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Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-94449

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-94449

Red Hat build of Quarkus 3.27.6.redhat

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Quarkus 3.33.4.redhat

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Exploit Intelligence

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Apache Camel 4 for Quarkus 3

Source reference: /containers/cna/affected/3/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat build of Apicurio Registry 3

Source reference: /containers/cna/affected/4/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Fuse 7

Source reference: /containers/cna/affected/5/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:/a:redhat:quarkus:3.27::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Quarkus 3.27.6.redhat",
    "versions": [
      {
        "status": "unaffected",
        "version": "3.27.6.redhat-00004",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "io.quarkus/quarkus-smallrye-fault-tolerance",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:quarkus:3.33::el8"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Quarkus 3.33.4.redhat",
    "versions": [
      {
        "status": "unaffected",
        "version": "3.33.4.redhat-00004",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "io.quarkus/quarkus-smallrye-fault-tolerance",
    "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:exploit_intelligence:0"
    ],
    "vendor": "Red Hat",
    "product": "Exploit Intelligence",
    "packageName": "exploit-intelligence/agent-client-rhel9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unknown"
  },
  {
    "cpes": [
      "cpe:/a:redhat:camel_quarkus:3"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Apache Camel 4 for Quarkus 3",
    "packageName": "quarkus-smallrye-fault-tolerance",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:apicurio_registry:3"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat build of Apicurio Registry 3",
    "packageName": "quarkus-smallrye-fault-tolerance",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:jboss_fuse:7"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Fuse 7",
    "packageName": "quarkus-smallrye-fault-tolerance",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-94449

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#32290 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-94449 · Revision 1Source updated