In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the HTTP proxy provides a body transformer interceptor that relies on a max buffered bytes limit to ensure a bounded buffer for each request. This can be used to force a server to indefinitely allocate heap. This vulnerability requires to use an intercepting body transformer.



The impacted component is io.vertx:vertx-http-proxy.

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History

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Description In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the HTTP proxy provides a body transformer interceptor that relies on a max buffered bytes limit to ensure a bounded buffer for each request. This can be used to force a server to indefinitely allocate heap. This vulnerability requires to use an intercepting body transformer. The impacted component is io.vertx:vertx-http-proxy.
Title io.vertx/vertx-http-proxy: vertx-http-proxy: Denial of Service via unbounded memory allocation in body transformer
Weaknesses CWE-770
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

threat_severity

Important


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cve-icon MITRE

Status: PUBLISHED

Assigner: eclipse

Published:

Updated: 2026-10-15T14:35:42.319Z

Reserved: 2026-09-29T08:40:58.969Z

Link: CVE-2026-102475

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-15T08:16:36.797

Modified: 2026-10-15T15:17:19.773

Link: CVE-2026-102475

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-15T07:24:09Z

Links: CVE-2026-102475 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses