{"id":"CVE-2026-102479","published":"2026-10-14T19:17:05.313","lastModified":"2026-10-16T19:17:01.130","description":"In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the Vert.x HTTP/1.x decoder uses a canonicalization for well known HTTP headers, the canonicalization process interprets well crafted headers as headers of this list, allowing for instance Content-Xength to be interpeted as Content-Length.\n\n\n\nThis can be exploited for request smuggling purpose.\n\n\n\nThe impacted component is io.vertx:vertx-core.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-444"],"vendors":[],"products":[],"references":[{"url":"https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-ch7p-g5pm-3gqx","tags":[]},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/352","tags":[]}],"exploitRefs":[{"url":"https://github.com/eclipse-vertx/vert.x/security/advisories/GHSA-ch7p-g5pm-3gqx","tags":[]}],"hasPoc":true,"ai":null}