{"id":"CVE-2026-47892","aliases":["GHSA-9qf2-26p9-2q2q"],"title":"Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints","summary":"Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints","severity":"critical","cvss":9.8,"cwe":["CWE-863"],"vendor":"springframework","product":"org.springframework:spring-webflux","ecosystem":"maven","affected":["org.springframework:spring-webflux >= 5.2.5.RELEASE, <= 5.2.25.RELEASE","org.springframework:spring-webflux >= 5.3.0, <= 5.3.49","org.springframework:spring-webflux >= 6.0.0, <= 6.0.30","org.springframework:spring-webflux >= 6.1.0, <= 6.1.28","org.springframework:spring-webflux >= 6.2.0, <= 6.2.19","org.springframework:spring-webflux >= 7.0.0, <= 7.0.8"],"patched":["org.springframework:spring-webflux 7.0.9"],"published":"2026-08-27","updated":"2026-10-07","sourceUpdated":"2026-10-07T13:20:48Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-9qf2-26p9-2q2q","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47892"},{"url":"https://spring.io/security/cve-2026-47892"},{"url":"https://github.com/advisories/GHSA-9qf2-26p9-2q2q"}],"tags":["ghsa","maven"],"epss":0.00529,"epssPercentile":0.4287,"ingestedAt":"2026-10-07T13:31:04.600Z","slug":"CVE-2026-47892","body":"## Overview\n\nA WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request.\nSpring Framework 7.0.0 - 7.0.8\nSpring Framework 6.2.0 - 6.2.19\nSpring Framework 6.1.0 - 6.1.28\nSpring Framework 6.0.0 - 6.0.30\nSpring Framework 5.3.0 - 5.3.49\nSpring Framework 5.2.5.RELEASE - 5.2.25.RELEASE\n\n## Affected packages\n\n- `org.springframework:spring-webflux >= 5.2.5.RELEASE, <= 5.2.25.RELEASE`\n- `org.springframework:spring-webflux >= 5.3.0, <= 5.3.49`\n- `org.springframework:spring-webflux >= 6.0.0, <= 6.0.30`\n- `org.springframework:spring-webflux >= 6.1.0, <= 6.1.28`\n- `org.springframework:spring-webflux >= 6.2.0, <= 6.2.19`\n- `org.springframework:spring-webflux >= 7.0.0, <= 7.0.8`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `org.springframework:spring-webflux 7.0.9`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}