Heap exhaustion via unbounded line accumulation in Vert.x STOMP FrameParser

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-118487
StatePUBLISHED
Assignereclipse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-03 16:17:19 UTC
Updated2026-11-03 16:30:17 UTC
DescriptionIn Eclipse Vert.x versions [4.0.0, 4.5.35] or [5.0.0, 5.2.2], the `FrameParser` in vertx-stomp creates a `RecordParser` without setting `maxRecordSize`, so any peer that streams bytes continuously without a newline character causes the parser to accumulate data indefinitely. Both the STOMP server and the STOMP client are affected: a malicious server can exploit this against a connecting client, and a malicious client can exploit this against a server before or after authentication. Sustained byte streaming exhausts JVM heap memory, crashing the affected process and causing a complete denial of service.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of resources without limits or throttling

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Eclipse Foundation Eclipse Vert.x affected 4.0.0 4.5.35 semver Not specified
CNA Eclipse Foundation Eclipse Vert.x affected 5.0.0 5.2.2 semver Not specified

References

ReferenceSourceLinkTags
gitlab.eclipse.org/security/vulnerability-reports/-/work_items/864 134c704f-9b21-4f2e-91b3-4a467353bcc0 gitlab.eclipse.org
gitlab.eclipse.org/security/cve-assignment/-/work_items/521 [email protected] gitlab.eclipse.org
github.com/vert-x3/vertx-stomp/security/advisories/GHSA-cchp-hff9-j7q7 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Mike Read (en)

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