---
id: CVE-2026-110723
title: >-
  In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver,
  `ClientIpKeyResolver`, derives the per-client bucket key from the leftmost
  element of the `X-Forwarded-For` request header
summary: >-
  In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver,
  `ClientIpKeyResolver`, derives the per-client bucket key from the leftmost
  element of the `X-Forwarded-For` request header. That element is supplied by
  the orig…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-290
  - CWE-644
vendor: Eclipse Foundation
product: Eclipse Connected Services Platform
affected:
  - eclipse_connected_services_platform >= 1.1.1 <= 1.7.3
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T14:41:34.110'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110723'
references:
  - url: 'https://github.com/eclipse-ecsp/api-gateway/pull/330'
    label: emo@eclipse.org
  - url: >-
      https://github.com/eclipse-ecsp/api-gateway/security/advisories/GHSA-m468-w7pr-f39w
    label: emo@eclipse.org
  - url: 'https://gitlab.eclipse.org/security/cve-assignment/-/work_items/406'
    label: emo@eclipse.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-15T13:11:09.309966Z'
ingestedAt: '2026-10-15T13:06:33.281Z'
---

## Overview

In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver, `ClientIpKeyResolver`, derives the per-client bucket key from the leftmost element of the `X-Forwarded-For` request header. That element is supplied by the originating HTTP client and is not validated against any trusted-proxy list. A single attacker can therefore obtain an unlimited number of independent rate-limit buckets — one per unique header value — and completely bypass the gateway's request-rate limiting on every route that uses the shipped default configuration.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.