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Medium 5.3Published Mar 8, 2019
CVE-2019-9636Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP and 18 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper Handling of Unicode Encoding (with an incorrect netloc) during NFKC normalization. The impact is: Information disclosure (credentials, cookies, etc. that are cached against a given hostname). The components are: urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A specially crafted URL could be incorrectly parsed to locate cookies or authentication data and send that information to a different host than when parsed correctly. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, 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; v3.7.3, v3.7.3rc1, 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.
- CVSS
- 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-173
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
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 3.0.0 before 3.4.10; from 3.5.0 before 3.5.7; from 3.6.0 before 3.6.9; from 3.7.0 before 3.7.3 | NVD |
fedoraproject fedora fedoraproject:fedora | 28; 29; 30; 31 | NVD |
opensuse leap opensuse:leap | 15.0; 15.1; 42.3 | NVD |
debian debian_linux debian:debian_linux | 8.0; 9.0 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 12.04; 14.04; 16.04; 18.04; 19.04 | NVD |
redhat openshift_container_platform redhat:openshift_container_platform | 3.11 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 7.5; 8.0 | NVD |
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop | 6.0 | NVD |
redhat enterprise_linux_eus redhat:enterprise_linux_eus | 7.5; 8.1; 8.2; 8.4; 8.6 | NVD |
redhat enterprise_linux_server redhat:enterprise_linux_server | 6.0 | NVD |
redhat enterprise_linux_server_aus redhat:enterprise_linux_server_aus | 7.4; 8.2; 8.4 | NVD |
redhat enterprise_linux_server_eus redhat:enterprise_linux_server_eus | 5.6 | NVD |
redhat enterprise_linux_server_tus redhat:enterprise_linux_server_tus | 7.4; 8.2; 8.4; 8.6 | NVD |
redhat enterprise_linux_workstation redhat:enterprise_linux_workstation | 6.0 | NVD |
redhat virtualization redhat:virtualization | 4.0 | NVD |
oracle sun_zfs_storage_appliance_kit oracle:sun_zfs_storage_appliance_kit | 8.8.6 | NVD |
References
- http://www.securityfocus.com/bid/107400vdb-entry, x-refsource-bid, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L25RTMKCF62DLC2XVSNXGX7C7HXISLVM/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D3LXPABKVLFYUHRYJPM3CSS5MS6FXKS7/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ICBEGRHIPHWPG2VGYS6R4EVKVUUF4AQW/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TR6GCO3WTV4D5L23WTCBF275VE6BVNI3/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CFBAAGM27H73OLYBUA2IAZFSUN6KGLME/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFAXBEY2TGOBDRKTR556JBXBVFSAKD6I/vendor-advisory, x-refsource-fedora
- https://access.redhat.com/errata/RHSA-2019:0710vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:0765vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:0806vendor-advisory, x-refsource-redhat, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00092.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00097.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:0902vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:0981vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:0997vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHBA-2019:0959vendor-advisory, x-refsource-redhat, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00024.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JXASHCDD4PQFKTMKQN4YOP5ZH366ABN4/vendor-advisory, x-refsource-fedora
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMWSKTNOHSUOT3L25QFJAVCFYZX46FYK/vendor-advisory, x-refsource-fedora
- https://access.redhat.com/errata/RHSA-2019:1467vendor-advisory, x-refsource-redhat, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00050.htmlvendor-advisory, x-refsource-suse, mailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00022.htmlmailing-list, x-refsource-mlist, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.htmlmailing-list, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlmailing-list, third-party-advisory
- https://access.redhat.com/errata/RHBA-2019:0763third-party-advisory
- https://access.redhat.com/errata/RHBA-2019:0764third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:2980third-party-advisory
- https://access.redhat.com/errata/RHSA-2019:3170third-party-advisory
- https://bugs.python.org/issue36216issue-tracking, patch, vendor-advisory
- https://github.com/python/cpython/pull/12201patch, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00023.htmlmailing-list, third-party-advisory
- 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.