{"id":"CVE-2026-47890","aliases":["GHSA-j9f9-w8pj-32f8"],"title":"Spring Framework Server Sent Event stream corruption while rendering fragments","summary":"Spring Framework Server Sent Event stream corruption while rendering fragments","severity":"critical","cvss":9.8,"cwe":["CWE-93"],"vendor":"springframework","product":"org.springframework:spring-webflux","ecosystem":"maven","affected":["org.springframework:spring-webflux >= 6.2.0, <= 6.2.19","org.springframework:spring-webflux >= 7.0.0, <= 7.0.8","org.springframework:spring-webmvc >= 6.2.0, <= 6.2.19","org.springframework:spring-webmvc >= 7.0.0, <= 7.0.8"],"patched":["org.springframework:spring-webflux 7.0.9","org.springframework:spring-webmvc 7.0.9"],"published":"2026-08-27","updated":"2026-10-07","sourceUpdated":"2026-10-07T13:20:36Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-j9f9-w8pj-32f8","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47890"},{"url":"https://spring.io/security/cve-2026-47890"},{"url":"https://github.com/advisories/GHSA-j9f9-w8pj-32f8"}],"tags":["ghsa","maven"],"epss":0.00564,"epssPercentile":0.45026,"ingestedAt":"2026-10-07T13:31:04.600Z","slug":"CVE-2026-47890","body":"## Overview\n\nSpring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events (SSE) with view fragments.\nSpring Framework 7.0.0 - 7.0.8\nSpring Framework 6.2.0 - 6.2.19\n\n## Affected packages\n\n- `org.springframework:spring-webflux >= 6.2.0, <= 6.2.19`\n- `org.springframework:spring-webflux >= 7.0.0, <= 7.0.8`\n- `org.springframework:spring-webmvc >= 6.2.0, <= 6.2.19`\n- `org.springframework:spring-webmvc >= 7.0.0, <= 7.0.8`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `org.springframework:spring-webflux 7.0.9`\n- `org.springframework:spring-webmvc 7.0.9`","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}