{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-47825: Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-47825","status":"final","version":"1","initial_release_date":"2026-06-15T19:34:29.601Z","current_release_date":"2026-06-15T19:34:29.601Z","revision_history":[{"date":"2026-06-15T19:34:29.601Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies in certain configuration scenarios. This affects both the WebMVC and WebFlux Gateway Servers.\n\nAffected versions:\nSpring Cloud Gateway 3.1.x (fix 3.1.13).\nSpring Cloud Gateway 4.1.x (fix 4.1.13).\nSpring Cloud Gateway 4.2.x (fix 4.2.9).\nSpring Cloud Gateway 4.3.x (fix 4.3.5).\nSpring Cloud Gateway 5.0.x (fix 5.0.2).","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-47825 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-47825"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-47825"},{"category":"external","summary":"spring.io","url":"https://spring.io/security/cve-2026-47825"}]},"product_tree":{"branches":[{"category":"vendor","name":"Spring","branches":[{"category":"product_name","name":"Spring Cloud Gateway","branches":[{"category":"product_version_range","name":">=3.1.0 <3.1.13","product":{"name":"Spring Spring Cloud Gateway >=3.1.0 <3.1.13","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_cloud_gateway:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4.1.0 <4.1.13","product":{"name":"Spring Spring Cloud Gateway >=4.1.0 <4.1.13","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_cloud_gateway:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4.2.0 <4.2.9","product":{"name":"Spring Spring Cloud Gateway >=4.2.0 <4.2.9","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_cloud_gateway:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=4.3.0 <4.3.5","product":{"name":"Spring Spring Cloud Gateway >=4.3.0 <4.3.5","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_cloud_gateway:*:*:*:*:*:*:*:*"}}},{"category":"product_version_range","name":">=5.0.0 <5.0.2","product":{"name":"Spring Spring Cloud Gateway >=5.0.0 <5.0.2","product_id":"CSAFPID-5","product_identification_helper":{"cpe":"cpe:2.3:a:spring:spring_cloud_gateway:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-47825","title":"Spring Cloud Gateway Server Forwards Headers from Untrusted Proxies in certain situations","notes":[{"category":"description","text":"Spring Cloud Gateway Server forwards the X-Forwarded-For and Forwarded headers from untrusted proxies in certain configuration scenarios. This affects both the WebMVC and WebFlux Gateway Servers.\n\nAffected versions:\nSpring Cloud Gateway 3.1.x (fix 3.1.13).\nSpring Cloud Gateway 4.1.x (fix 4.1.13).\nSpring Cloud Gateway 4.2.x (fix 4.2.9).\nSpring Cloud Gateway 4.3.x (fix 4.3.5).\nSpring Cloud Gateway 5.0.x (fix 5.0.2).","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","baseScore":8.6,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 3.1.13, 4.1.13, 4.2.9, 4.3.5, 5.0.2.","product_ids":["CSAFPID-1","CSAFPID-2","CSAFPID-3","CSAFPID-4","CSAFPID-5"]}]}]}