CVE-2026-118487 (GCVE-0-2026-118487)
Vulnerability from cvelistv5 – Published: 2026-11-03 15:27 – Updated: 2026-11-03 15:45
VLAI
EPSS
VEX
Title
Heap exhaustion via unbounded line accumulation in Vert.x STOMP FrameParser
Summary
In 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.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 15:45 UTC
CWE
- CWE-770 - Allocation of resources without limits or throttling
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.0.0 , ≤ 4.5.35
(semver)
Affected: 5.0.0 , ≤ 5.2.2 (semver) |
guessed |
Date Public
2026-11-03 15:18
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