CVE-2026-94449
Quarkus-smallrye-fault-tolerance: quarkus-smallrye-fault-tolerance: memory leak in @applyguard leads to denial of service
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Red Hat · Red Hat Build of Apache Camel 3.33.4.redhat
- unaffected 3.33.4.redhat-00004 – < *
Red Hat · Red Hat build of Quarkus 3.27.6.redhat
- unaffected 3.27.6.redhat-00004 – < *
Red Hat · Red Hat build of Quarkus 3.33.4.redhat
- unaffected 3.33.4.redhat-00004 – < *
Red Hat · Exploit Intelligence
All versions: unknown
Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3
All versions: affected
Red Hat · Red Hat build of Apicurio Registry 3
All versions: affected
All versions: unaffected
References (5)
- RHSA-2026:83082 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:83520 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:83670 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-94449 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2537502 (opens in a new tab)issue-trackingx_refsource_REDHAT
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-94449)Record last updated .