This affects the package io.jooby:jooby-netty before 1.6.9, from 2.0.0 and before 2.2.1. The DefaultHttpHeaders is set to false which means it does not validates that the header isn't being abused for HTTP Response Splitting.
https://snyk.io/vuln/SNYK-JAVA-IOJOOBY-564249
https://github.com/jooby-project/jooby/commit/b66e3342cf95205324023cfdf2cb5811e8a6dcf4
https://github.com/jooby-project/jooby/security/advisories/GHSA-gv3v-92v6-m48j
Source: Mitre, NVD
Published: 2020-04-06
Updated: 2026-06-17
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00431