--- id: CVE-2019-10160 title: >- 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… summary: >- 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… severity: critical cvss: 9.8 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H' cwe: - CWE-172 - CWE-522 vendor: python product: python affected: - 'python >= 2.7.0, < 2.7.17' - 'python >= 3.5.0, < 3.5.8' - 'python >= 3.6.0, < 3.6.9' - 'python >= 3.7.0, < 3.7.4' - python = 3.8.0 - enterprise_linux_desktop = 7.0 - enterprise_linux_eus = 7.6 - enterprise_linux_server = 7.0 - enterprise_linux_server_aus = 7.6 - enterprise_linux_server_tus = 7.6 - enterprise_linux_workstation = 7.0 - debian_linux = 8.0 - debian_linux = 9.0 - leap = 15.0 - leap = 15.1 - fedora = 29 - fedora = 30 - fedora = 31 - ubuntu_linux = 12.04 - ubuntu_linux = 14.04 - ubuntu_linux = 16.04 - ubuntu_linux = 18.04 - ubuntu_linux = 19.04 - virtualization = 4.0 - cloud_backup - converged_systems_advisor_agent patched: - python 3.7.4 published: '2019-06-07' updated: '2026-10-07' sourceUpdated: '2026-10-07T19:17:11.967' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-10160' references: - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.html' label: secalert@redhat.com - url: 'http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2019:1587' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2019:1700' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2019:2437' label: secalert@redhat.com - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10160' label: secalert@redhat.com - url: >- https://github.com/python/cpython/commit/250b62acc59921d399f0db47db3b462cd6037e09 label: secalert@redhat.com - url: >- https://github.com/python/cpython/commit/8d0ef0b5edeae52960c7ed05ae8a12388324f87e label: secalert@redhat.com - url: >- https://github.com/python/cpython/commit/f61599b050c621386a3fc6bc480359e2d3bb93de label: secalert@redhat.com - url: >- https://github.com/python/cpython/commit/fd1771dbdd28709716bd531580c40ae5ed814468 label: secalert@redhat.com - url: >- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E label: secalert@redhat.com - url: 'https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html' label: secalert@redhat.com - url: 'https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html' label: secalert@redhat.com - url: 'https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html' label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQEQLXLOCR3SNM3AA5RRYJFQ5AZBYJ4L/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KRYFIMISZ47NTAU3XWZUOFB7CYL62KES/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/ label: secalert@redhat.com - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/ label: secalert@redhat.com - url: >- https://python-security.readthedocs.io/vuln/urlsplit-nfkc-normalization2.html label: secalert@redhat.com - url: 'https://security.netapp.com/advisory/ntap-20190617-0003/' label: secalert@redhat.com - url: 'https://usn.ubuntu.com/4127-1/' label: secalert@redhat.com - url: 'https://usn.ubuntu.com/4127-2/' label: secalert@redhat.com - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:1587' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:1700' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2437' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10160' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://github.com/python/cpython/commit/250b62acc59921d399f0db47db3b462cd6037e09 label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://github.com/python/cpython/commit/8d0ef0b5edeae52960c7ed05ae8a12388324f87e label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://github.com/python/cpython/commit/f61599b050c621386a3fc6bc480359e2d3bb93de label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://github.com/python/cpython/commit/fd1771dbdd28709716bd531580c40ae5ed814468 label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQEQLXLOCR3SNM3AA5RRYJFQ5AZBYJ4L/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KRYFIMISZ47NTAU3XWZUOFB7CYL62KES/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://python-security.readthedocs.io/vuln/urlsplit-nfkc-normalization2.html label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20190617-0003/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://usn.ubuntu.com/4127-1/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://usn.ubuntu.com/4127-2/' label: af854a3a-2127-422b-91ae-364da2661108 tags: - nvd - cve.org epss: 0.05227 epssPercentile: 0.92285 ssvc: exploitation: none automatable: 'no' technicalImpact: partial timestamp: '2026-10-07T18:23:24.180971Z' ingestedAt: '2026-10-07T18:42:20.897Z' --- ## Overview 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. ## Affected - `python >= 2.7.0, < 2.7.17` - `python >= 3.5.0, < 3.5.8` - `python >= 3.6.0, < 3.6.9` - `python >= 3.7.0, < 3.7.4` - `python = 3.8.0` - `enterprise_linux_desktop = 7.0` - `enterprise_linux_eus = 7.6` - `enterprise_linux_server = 7.0` - `enterprise_linux_server_aus = 7.6` - `enterprise_linux_server_tus = 7.6` - `enterprise_linux_workstation = 7.0` - `debian_linux = 8.0` - `debian_linux = 9.0` - `leap = 15.0` - `leap = 15.1` - `fedora = 29` - `fedora = 30` - `fedora = 31` - `ubuntu_linux = 12.04` - `ubuntu_linux = 14.04` - `ubuntu_linux = 16.04` - `ubuntu_linux = 18.04` - `ubuntu_linux = 19.04` - `virtualization = 4.0` - `cloud_backup` - `converged_systems_advisor_agent` ## Remediation Upgrade past the affected range: - `python 3.7.4`