What’s Vulnerable › Vulnerabilities

CVE-2019-20916

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-04 · updated 2026-06-17
• Weakness: CWE-22

Description

The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install command, because a Content-Disposition header can have ../ in a filename, as demonstrated by overwriting the /root/.ssh/authorized_keys file. This occurs in _download_http_url in _internal/download.py.

Affected products

• Debian Linux: 9.0
• openSUSE Leap: 15.1, 15.2
• Oracle Communications Cloud Native Core Network Function Cloud Native Environment: 1.10.0, 22.1.0
• Oracle Communications Cloud Native Core Policy: 1.15.0
• Python Packaging Authority pip: before 19.2 — fixed in 19.2

How to fix

Upgrade to a fixed version: Python Packaging Authority pip 19.2. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00010.html
• https://github.com/gzpan123/pip/commit/a4c735b14a62f9cb864533808ac63936704f2ace
• https://github.com/pypa/pip/compare/19.1.1...19.2
• https://github.com/pypa/pip/issues/6413
• https://lists.debian.org/debian-lts-announce/2020/09/msg00010.html
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujul2022.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00010.html
• https://github.com/gzpan123/pip/commit/a4c735b14a62f9cb864533808ac63936704f2ace
• https://github.com/pypa/pip/compare/19.1.1...19.2

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