{"id":"CVE-2019-9947","revision":"b4be0bd9b24046d199fa3b592ddcca07","records":[{"revision":"b4be0bd9b24046d199fa3b592ddcca07","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2019-9947","aliases":[],"title":"An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen wit…","description":"An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \\r\\n (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9, v3.6.9rc1; v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.","state":0,"publishedAt":"2019-03-23T17:06:47+00:00","modifiedAt":"2026-10-14T06:49:49.072+00:00","affected":[{"ecosystem":"Vendor product","name":"n/a","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"n/a\",\n                    \"vendor\": \"n/a\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"n/a\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://bugs.python.org/issue35906","https://security.netapp.com/advisory/ntap-20190404-0004/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/","https://access.redhat.com/errata/RHSA-2019:1260","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/","https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html","https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html","https://lists.debian.org/debian-lts-announce/2019/06/msg00026.html","https://access.redhat.com/errata/RHSA-2019:2030","https://usn.ubuntu.com/4127-2/","https://usn.ubuntu.com/4127-1/","http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html","http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html","https://access.redhat.com/errata/RHSA-2019:3335","https://access.redhat.com/errata/RHSA-2019:3520","https://access.redhat.com/errata/RHSA-2019:3725","http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html","https://security.gentoo.org/glsa/202003-26","https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html","https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html","http://www.openwall.com/lists/oss-security/2021/02/04/2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2019-9947","license":"CVE Program Terms of Use","key":"cve-program:CVE-2019-9947","identifiers":["CVE-2019-9947"]},"retained":false,"historicalAffected":[]}],"coverage":[]}