{"id":"CVE-2019-9947","details":"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.","aliases":["PSF-2019-11"],"modified":"2026-04-16T04:32:10.272584239Z","published":"2019-03-23T18:29:02.027Z","related":["ALSA-2019:3335","SUSE-FU-2022:0444-1","SUSE-FU-2022:0445-1","SUSE-RU-2020:0775-1","SUSE-SU-2019:1352-1","SUSE-SU-2019:1352-2","SUSE-SU-2019:14246-1","SUSE-SU-2019:2743-1","SUSE-SU-2020:0114-1","SUSE-SU-2020:0234-1","SUSE-SU-2020:0302-1","SUSE-SU-2020:2699-1","SUSE-SU-2025:20025-1","SUSE-SU-2025:20154-1","SUSE-SU-2025:20492-1","openSUSE-SU-2019:2389-1","openSUSE-SU-2019:2393-1","openSUSE-SU-2020:0086-1","openSUSE-SU-2024:11202-1","openSUSE-SU-2024:11283-1","openSUSE-SU-2024:11284-1","openSUSE-SU-2024:11285-1","openSUSE-SU-2024:11286-1","openSUSE-SU-2024:12089-1","openSUSE-SU-2024:12910-1","openSUSE-SU-2024:14109-1","openSUSE-SU-2024:14434-1","openSUSE-SU-2025:15713-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/02/04/2"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3520"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/06/msg00026.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3335"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-26"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4127-1/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:1260"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3725"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190404-0004/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.html"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2030"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4127-2/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.html"},{"type":"FIX","url":"https://bugs.python.org/issue35906"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"c2f86d86e6c8f5fd1ef602128b537a48f3f5c063"},{"introduced":"2e789a1f1d84b343a996e8654590703b5fbdd441"},{"fixed":"ac39a516017c80993309f803441c8ee97c44838e"},{"introduced":"5c4568a05a0a62b5947c55f68f9f2ecfb90a4f12"},{"fixed":"201c8f79450628241574fba940e08107178dc3a5"},{"introduced":"1bf9cc509326bc42cd8cb1650eb9bf64550d817e"},{"fixed":"e09359112e250268eca209355abeb17abf822486"}],"database_specific":{"versions":[{"introduced":"2.7.0"},{"fixed":"2.7.17"},{"introduced":"3.5.0"},{"fixed":"3.5.8"},{"introduced":"3.6.0"},{"fixed":"3.6.9"},{"introduced":"3.7.0"},{"fixed":"3.7.4"}]}}],"versions":["v0.9.8","v0.9.9","v1.0.1","v1.0.2","v1.1","v1.1.1","v1.2","v1.2b1","v1.2b2","v1.2b3","v1.2b4","v1.3","v1.3b1","v1.4","v1.4b1","v1.4b2","v1.4b3","v1.5","v1.5.1","v1.5.2","v1.5.2a1","v1.5.2a2","v1.5.2b1","v1.5.2b2","v1.5.2c1","v1.5a1","v1.5a2","v1.5a3","v1.5a4","v1.5b1","v1.5b2","v1.6a1","v1.6a2","v2.0","v2.0b1","v2.0b2","v2.0c1","v2.1","v2.1a1","v2.1a2","v2.1b1","v2.1b2","v2.1c1","v2.1c2","v2.2a3","v2.3c1","v2.3c2","v2.4","v2.4a1","v2.4a2","v2.4a3","v2.4b1","v2.4b2","v2.4c1","v2.5a0","v2.5a1","v2.5a2","v2.5b1","v2.5b2","v2.5b3","v2.6","v2.6a1","v2.6a2","v2.6a3","v2.6b1","v2.6b2","v2.6b3","v2.6rc1","v2.6rc2","v2.7","v2.7.1","v2.7.10rc1","v2.7.11rc1","v2.7.12rc1","v2.7.13rc1","v2.7.15rc1","v2.7.16rc1","v2.7.17rc1","v2.7.1rc1","v2.7.2rc1","v2.7.3rc1","v2.7.4rc1","v2.7.5","v2.7.6rc1","v2.7.8","v2.7.9rc1","v2.7a1","v2.7a2","v2.7a3","v2.7a4","v2.7b1","v2.7b2","v2.7rc1","v2.7rc2","v3.0a1","v3.0a2","v3.0a3","v3.0a4","v3.0a5","v3.0b1","v3.0b2","v3.0b3","v3.0rc1","v3.0rc2","v3.0rc3","v3.1","v3.1a1","v3.1a2","v3.1b1","v3.1rc1","v3.1rc2","v3.2a1","v3.2a2","v3.2a3","v3.2a4","v3.2b1","v3.2b2","v3.2rc1","v3.2rc2","v3.2rc3","v3.3.0a2","v3.3.0a3","v3.3.0a4","v3.3.0b1","v3.3.0b2","v3.3.0rc1","v3.3.0rc2","v3.3.0rc3","v3.4.0a1","v3.4.0a2","v3.4.0a3","v3.4.0a4","v3.4.0b1","v3.4.0b2","v3.4.0b3","v3.5.0a1","v3.5.0a2","v3.5.0a3","v3.5.0a4","v3.5.0b1","v3.5.0b3","v3.5.0b4","v3.5.0rc1","v3.5.0rc2","v3.5.0rc3","v3.5.1rc1","v3.5.2","v3.5.2rc1","v3.5.3","v3.5.3rc1","v3.5.4","v3.5.4rc1","v3.5.5","v3.5.5rc1","v3.5.6","v3.5.6rc1","v3.5.7","v3.5.7rc1","v3.5.8rc1","v3.5.8rc2","v3.6.0a3","v3.6.0b1","v3.6.0b3","v3.6.0b4","v3.6.0rc1","v3.6.2rc1","v3.6.6rc1","v3.6.8","v3.6.8rc1","v3.6.9rc1","v3.7.0a2","v3.7.0b1","v3.7.0b2","v3.7.0b3","v3.7.0b4","v3.7.0b5","v3.7.0rc1","v3.7.2rc1","v3.7.3rc1","v3.7.4rc1","v3.7.4rc2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9947.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}