CVE-2019-10160A 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 s…
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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.
- CVSS
- 9.8 CRITICAL (v3.0, CNA)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-172
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Python python python:python (from the name) | affects 2.7, 3.5, 3.6, 3.7, >= v3.8.0a4 and < v3.8.0b1 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
python python python:python | from 2.7.0 before 2.7.17; from 3.5.0 before 3.5.8; from 3.6.0 before 3.6.9; from 3.7.0 before 3.7.4; 3.8.0; 3.8.0 | NVD |
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop | 7.0 | NVD |
redhat enterprise_linux_eus redhat:enterprise_linux_eus | 7.6 | NVD |
redhat enterprise_linux_server redhat:enterprise_linux_server | 7.0 | NVD |
redhat enterprise_linux_server_aus redhat:enterprise_linux_server_aus | 7.6 | NVD |
redhat enterprise_linux_server_tus redhat:enterprise_linux_server_tus | 7.6 | NVD |
redhat enterprise_linux_workstation redhat:enterprise_linux_workstation | 7.0 | NVD |
debian debian_linux debian:debian_linux | 8.0; 9.0 | NVD |
opensuse leap opensuse:leap | 15.0; 15.1 | NVD |
fedoraproject fedora fedoraproject:fedora | 29; 30; 31 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 12.04; 14.04; 16.04; 18.04; 19.04 | NVD |
redhat virtualization redhat:virtualization | 4.0 | NVD |
netapp cloud_backup netapp:cloud_backup | all versions | NVD |
netapp converged_systems_advisor_agent netapp:converged_systems_advisor_agent | all versions | NVD |
References
- https://python-security.readthedocs.io/vuln/urlsplit-nfkc-normalization2.htmlx-refsource-misc, patch, third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10160x-refsource-confirm, issue-tracking, patch, third-party-advisory
- https://github.com/python/cpython/commit/8d0ef0b5edeae52960c7ed05ae8a12388324f87ex-refsource-confirm, patch, third-party-advisory
- https://github.com/python/cpython/commit/f61599b050c621386a3fc6bc480359e2d3bb93dex-refsource-confirm, patch, third-party-advisory
- https://github.com/python/cpython/commit/250b62acc59921d399f0db47db3b462cd6037e09x-refsource-confirm, patch, third-party-advisory
- https://github.com/python/cpython/commit/fd1771dbdd28709716bd531580c40ae5ed814468x-refsource-confirm, patch, third-party-advisory
- https://security.netapp.com/advisory/ntap-20190617-0003/x-refsource-confirm
- https://access.redhat.com/errata/RHSA-2019:1587vendor-advisory, x-refsource-redhat, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00022.htmlmailing-list, x-refsource-mlist, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:1700vendor-advisory, x-refsource-redhat, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/44TS66GJMO5H3RLMVZEBGEFTB6O2LJJU/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ORNTF62QPLMJXIQ7KTZQ2776LMIXEKL/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KRYFIMISZ47NTAU3XWZUOFB7CYL62KES/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQEQLXLOCR3SNM3AA5RRYJFQ5AZBYJ4L/vendor-advisory, x-refsource-fedora
- https://access.redhat.com/errata/RHSA-2019:2437vendor-advisory, x-refsource-redhat, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://usn.ubuntu.com/4127-2/vendor-advisory, x-refsource-ubuntu
- https://usn.ubuntu.com/4127-1/vendor-advisory, x-refsource-ubuntu
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NF3DRDGMVIRYNZMSLJIHNW47HOUQYXVG/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ER6LONC2B2WYIO56GBQUDU6QTWZDPUNQ/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E2HP37NUVLQSBW3J735A2DQDOZ4ZGBLY/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/vendor-advisory, x-refsource-fedora
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlmailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlmailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.