In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.Referenceshttps://labs.twistedmatrix.com/2019/06/twisted-1921-released.htmlhttps://github.com/twisted/twisted/commit/6c61fc4503ae39ab8ecee52d10f10ee2c371d7e2https://twistedmatrix.com/pipermail/twisted-python/2019-June/032352.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00030.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00042.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2G5RPDQ4BNB336HL6WW5ZJ344MAWNN7N/https://usn.ubuntu.com/4308-2/https://usn.ubuntu.com/4308-1/https://www.oracle.com/security-alerts/cpuapr2020.html
