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CVE-2026-102479: Request smuggling in Eclipse Vert.x HTTP/1.x decoder

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vulnerabilities

CVE-2026-102479: Request smuggling in Eclipse Vert.x HTTP/1.x decoder

CVE-2026-102479 is a request smuggling vulnerability in Eclipse Vert.x HTTP/1.x decoder with a CVSS score of 8.7. The vulnerability affects vertx-core across three minor release branches, though the exploitation window is limited. A security advisory and technical analysis from JFrog document the flaw and its potential attack vectors.

Why it matters: Organizations using Eclipse Vert.x in production need to assess whether they run affected versions and apply patches promptly, given the moderate-to-high severity and the request smuggling risk to backend systems.

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