{"id":"PSF-2019-3","summary":"urlsplit does not handle NFKC normalization (second fix)","details":"A security regression of CVE-2019-9636 was discovered in python since commit d537ab0ff9767ef024f26246899728f0116b1ec3 affecting versions 2.7, 3.5, 3.6, 3.7 and from v3.8.0a4 through v3.8.0b1, which still allows an attacker to exploit CVE-2019-9636 by abusing the user and password parts of a URL. When an application parses user-supplied URLs to store cookies, authentication credentials, or other kind of information, it is possible for an attacker to provide specially crafted URLs to make the application locate host-related information (e.g. cookies, authentication data) and send them to a different host than where it should, unlike if the URLs had been correctly parsed. The result of an attack may vary based on the application.","aliases":["CVE-2019-10160"],"modified":"2026-05-18T05:45:44.152663216Z","published":"2019-06-07T17:50:33Z","database_specific":{"cwe_ids":[]},"references":[{"type":"REPORT","url":"https://bugs.python.org/issue36742"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"250b62acc59921d399f0db47db3b462cd6037e09"},{"fixed":"4655d576141ee56a69d2052431c636858fcb916a"},{"fixed":"8d0ef0b5edeae52960c7ed05ae8a12388324f87e"},{"fixed":"f61599b050c621386a3fc6bc480359e2d3bb93de"},{"fixed":"fd1771dbdd28709716bd531580c40ae5ed814468"}]}],"versions":["v3.7.3rc1","v3.5.7","v3.5.7rc1","v2.7.16rc1","v3.6.8","v3.7.2rc1","v3.6.8rc1","v3.5.6","v3.5.6rc1","v3.7.0rc1","v3.6.6rc1","v3.7.0b5","v3.7.0b4","v2.7.15rc1","v3.7.0b3","v3.7.0b2","v3.5.5","v3.5.5rc1","v3.7.0b1","v3.7.0a2","v3.5.4","v3.5.4rc1","v3.6.2rc1","v3.5.3","v3.5.3rc1","v3.6.0rc1","v2.7.13rc1","v3.6.0b4","v3.6.0b3","v3.6.0b1","v3.6.0a3","v3.5.2","v3.5.2rc1","v2.7.12rc1","v3.5.1rc1","v2.7.11rc1","v3.5.0rc3","v3.5.0rc2","v3.5.0rc1","v3.5.0b4","v3.5.0b3","v3.5.0b1","v2.7.10rc1","v3.5.0a4","v3.5.0a3","v3.5.0a2","v3.5.0a1","v2.7.9rc1","v2.7.8","v3.4.0b3","v3.4.0b2","v3.4.0b1","v2.7.6rc1","v3.4.0a4","v3.4.0a3","v3.4.0a2","v3.4.0a1","v2.7.5","v2.7.4rc1","v3.3.0rc3","v3.3.0rc2","v3.3.0rc1","v3.3.0b2","v3.3.0b1","v3.3.0a4","v3.3.0a3","v3.3.0a2","v2.7.3rc1","v2.7.2rc1","v2.7","v3.2rc3","v3.2rc2","v3.2rc1","v3.2b2","v3.2b1","v2.7.1","v2.7.1rc1","v3.2a4","v3.2a3","v3.2a2","v3.2a1","v2.7rc2","v2.7rc1","v2.7b2","v2.7b1","v2.7a4","v2.7a3","v2.7a2","v2.7a1","v3.1","v3.1rc2","v3.1rc1","v3.1b1","v3.1a2","v3.1a1","v3.0rc3","v3.0rc2","v2.6","v2.6rc2","v3.0rc1","v2.6rc1","v3.0b3","v2.6b3","v2.6b2","v3.0b2","v2.6b1","v3.0b1","v2.6a3","v3.0a5","v2.6a2","v3.0a4","v3.0a3","v2.6a1","v3.0a2","v3.0a1","v2.5b3","v2.5b2","v2.5b1","v2.5a2","v2.5a1","v2.5a0","v2.4","v2.4c1","v2.4b2","v2.4b1","v2.4a3","v2.4a2","v2.4a1","v2.3c2","v2.3c1","v2.2a3","v2.1","v2.1c2","v2.1c1","v2.1b2","v2.1b1","v2.1a2","v2.1a1","v2.0","v2.0c1","v2.0b2","v2.0b1","v1.6a2","v1.6a1","v1.5.2","v1.5.2c1","v1.5.2b2","v1.5.2b1","v1.5.2a2","v1.5.2a1","v1.5.1","v1.5","v1.5b2","v1.5b1","v1.5a4","v1.5a3","v1.5a2","v1.5a1","v1.4","v1.4b3","v1.4b2","v1.4b1","v1.3","v1.3b1","v1.2","v1.2b4","v1.2b3","v1.2b2","v1.2b1","v1.1.1","v1.1","v1.0.2","v1.0.1","v0.9.9","v0.9.8"],"database_specific":{"source":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2019-3.json"}}],"schema_version":"1.7.5"}