CVE-2021-3572

5.7 MEDIUM 2% exploit odds Fix listed

What it is

A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This is fixed in python-pip version 21.1.

At a glance

Exploitability: Can be exploited over the network with a low-privilege account, but needs a user to act. High risk of data tampering.
Exploit odds: 1.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-11-10 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-08 21:17 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.8% in the next 30 days (EPSS).
Severity: 5.7 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-11-10 18:15 UTC
Last modified: 2026-10-08 21:17 UTC
Exploit probability: 1.8% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Modified

Affected

Pypa Pip < 21.1
Oracle Agile Product Lifecycle Management 9.3.6
Oracle Communications Cloud Native Core Network Function Cloud Native Environment 1.10.0
Oracle Communications Cloud Native Core Network Function Cloud Native Environment 22.1.0
Oracle Communications Cloud Native Core Policy 1.15.0
Oracle Communications Cloud Native Core Policy 22.1.3

Attack profile CVSS 3.1 · 5.7

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: High
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-3572.md and follow it. Check whether this project is affected by CVE-2021-3572. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record