{"id":"CVE-2026-110726","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":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-348","CWE-770","CWE-807"],"vendor":"Eclipse Foundation","product":"Eclipse Connected Services Platform","affected":["eclipse_connected_services_platform >= 1.5.4 <= 1.7.3"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T16:17:46.283","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-110726","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-ch6x-rg7q-7jfx","label":"emo@eclipse.org"},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/404","label":"emo@eclipse.org"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-15T15:30:07.394578Z"},"ingestedAt":"2026-10-15T12:03:44.067Z","epss":0.00192,"epssPercentile":0.08784,"slug":"CVE-2026-110726","body":"## Overview\n\nIn `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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":222452,"id":"CVE-2026-110726","ts":1792081011561,"field":"cvss","old":null,"new":"6.5"},{"seq":222451,"id":"CVE-2026-110726","ts":1792081011561,"field":"severity","old":"none","new":"medium"}]}