# CVE-2019-10160: Information disclosure in python > Attackers can craft URLs to leak cookies and credentials to wrong hosts due to flawed parsing in Python's urllib. - **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 7 Jun 2019 - **Updated:** 14 Oct 2026 - **Also known as:** CLSA-2021-1616001357, DEBIAN-CVE-2019-10160, GHSA-379v-rm3f-c48g, PSF-2019-3, RHSA-2019:1587, SUSE-SU-2019:2064-1, UBUNTU-CVE-2019-10160, openSUSE-SU-2019:1906-1 ## What is CVE-2019-10160? CVE-2019-10160 is a critical vulnerability in Canonical Ubuntu Linux, published on 7 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description 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. Weakness: CWE-522 (Insufficiently Protected Credentials), CWE-172 (Improper Encoding or Decoding of Data) ## Which versions are affected by CVE-2019-10160? It affects 14 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `python` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python-debug` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python-devel` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python-libs` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python-test` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python-tools` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `tkinter` | Red Hat:enterprise_linux:7::client | All versions | 0:2.7.5-80.el7_6 | | `python` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python-debug` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python-devel` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python-libs` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python-test` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python-tools` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `tkinter` | Red Hat:enterprise_linux:7::computenode | All versions | 0:2.7.5-80.el7_6 | | `python` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python-debug` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python-debuginfo` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python-devel` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python-libs` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python-test` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python-tools` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `tkinter` | Red Hat:enterprise_linux:7::server | All versions | 0:2.7.5-80.el7_6 | | `python` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python-debug` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python-debuginfo` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python-devel` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python-libs` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python-test` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python-tools` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `tkinter` | Red Hat:enterprise_linux:7::workstation | All versions | 0:2.7.5-80.el7_6 | | `python` | SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 2.7.14-7.14.2 | | `python-base` | SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 2.7.14-7.14.2 | | `python` | SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 2.7.14-7.14.2 | | `python-base` | SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 2.7.14-7.14.2 | | `python` | SUSE:Linux Enterprise Module for Desktop Applications 15 | All versions | 2.7.14-7.14.2 | | `python` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP1 | All versions | 2.7.14-7.14.2 | | `python` | SUSE:Linux Enterprise Module for Python 2 15 SP1 | All versions | 2.7.14-7.14.2 | | `python-base` | SUSE:Linux Enterprise Module for Python 2 15 SP1 | All versions | 2.7.14-7.14.2 | Products: Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Netapp Cloud Backup, Netapp Converged Systems Advisor Agent, Opensuse Leap, Python Python, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Tus, Redhat Enterprise Linux Workstation, Redhat Virtualization. ## How do I fix CVE-2019-10160? Apply the vendor's patch. ## Is CVE-2019-10160 being exploited? There is no known exploitation of CVE-2019-10160 in the wild and no public exploit code. ## Other vulnerabilities in Canonical Ubuntu Linux - [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild) - [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild) - [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild) - [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild) - [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2019-10160 and fix it if it is affected. What it is: CVE-2019-10160 is a critical vulnerability in Canonical Ubuntu Linux, published on 7 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2019-10160 in the wild and no public exploit code. Affected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2019-10160/ (Markdown: https://insights.sbomify.com/CVE-2019-10160/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10160 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10160 - OSV: https://osv.dev/vulnerability/CVE-2019-10160 --- From sbomify Insights: https://insights.sbomify.com/CVE-2019-10160/ Summaries are generated and may contain mistakes; the official description above is the record.