# CVE-2025-2240: Smallrye-fault-tolerance: smallrye fault tolerance

Status: published. Published: 2025-03-12. Updated: 2026-11-04.

A flaw was found in Smallrye, where smallrye-fault-tolerance is vulnerable to an out-of-memory (OOM) issue. This vulnerability is externally triggered when calling the metrics URI. Every call creates a new object within meterMap and may lead to a denial of service (DoS) issue.

## Remediation

- workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible. (source: CNA: redhat)
- fix: io.smallrye:smallrye-fault-tolerance-core (Maven): OSV reports a fixed version 6.4.2. Check the advisory for supported release branches. (source: OSV GHSA-gfh6-3pqw-x2j4) — https://github.com/advisories/GHSA-gfh6-3pqw-x2j4
- fix: io.smallrye:smallrye-fault-tolerance-core (Maven): OSV reports a fixed version 6.9.0. Check the advisory for supported release branches. (source: OSV GHSA-gfh6-3pqw-x2j4) — https://github.com/advisories/GHSA-gfh6-3pqw-x2j4

## Affected products and versions

-  /  (smallrye-fault-tolerance-core): ≥ 6.3.0; < 6.4.2 (affected, semver); ≥ 6.5.0; < 6.9.0 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat build of Apache Camel 4.8.5 for Spring Boot (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Build of Apache Camel 4.8 for Quarkus 3.15 (quarkus-camel-bom): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Build of Apache Camel 4.8 for Quarkus 3.15 (quarkus-cxf-bom): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus 3.15.4 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Apicurio Registry 2 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Apicurio Registry 3 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus (smallrye-fault-tolerance-apiimpl): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Fuse 7 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Integration Camel K 1 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 7 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8 (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack (smallrye-fault-tolerance-core): Version range not reported. Source: CNA: redhat
-  / io.smallrye:smallrye-fault-tolerance-core (io.smallrye:smallrye-fault-tolerance-core): 6.3.0 (affected, Maven); 6.4.0 (affected, Maven); 6.4.1 (affected, Maven); Ecosystem version events: introduced 6.3.0; fixed 6.4.2. Source: OSV GHSA-gfh6-3pqw-x2j4
-  / io.smallrye:smallrye-fault-tolerance-core (io.smallrye:smallrye-fault-tolerance-core): 6.5.0 (affected, Maven); 6.6.0 (affected, Maven); 6.6.0-RC2 (affected, Maven); 6.6.1 (affected, Maven); 6.6.2 (affected, Maven); 6.6.3 (affected, Maven); 6.7.0 (affected, Maven); 6.7.1 (affected, Maven); 6.7.2 (affected, Maven); 6.7.3 (affected, Maven); 6.8.0 (affected, Maven); Ecosystem version events: introduced 6.5.0; fixed 6.9.0. Source: OSV GHSA-gfh6-3pqw-x2j4

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: CNA: redhat

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: NVD: secalert@redhat.com

- CISA KEV: No listing in collected sources

- EPSS: 1.23% as of 2026-11-04; percentile 69.10%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-1325

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2025:3376 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2025:3541 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2025:3543 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2025-2240 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2351452 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://github.com/advisories/GHSA-gfh6-3pqw-x2j4 (CNA: redhat)

- https://access.redhat.com/errata/RHSA-2025:3376 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2025:3541 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2025:3543 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2025-2240 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2351452 (secalert@redhat.com)

- https://github.com/advisories/GHSA-gfh6-3pqw-x2j4 (secalert@redhat.com)

- https://github.com/advisories/GHSA-gfh6-3pqw-x2j4 (OSV / GitHub Security Advisories; advisory)

- https://osv.dev/vulnerability/GHSA-gfh6-3pqw-x2j4 (OSV / GitHub Security Advisories; osv)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2025-2240; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-2240; retrieved 2026-11-05; source updated 2026-11-04

- OSV / GitHub Security Advisories: https://osv.dev/vulnerability/GHSA-gfh6-3pqw-x2j4; retrieved 2026-11-04; source updated 2026-09-10

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2025-2240; retrieved 2026-11-04; source updated Not reported

Revision: 88ada5dbbdd35a5fed6e328653de56e10bf182319107b0734168ea898d48f2d4

Canonical: https://y2.dev/cve/CVE-2025-2240

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.