Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2021-3572

CVE-2021-3572MEDIUM

n/a python-pip — A flaw was found in python-pip in the way it handled Unicode separators in git references.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   R  U  N  H  N    5.7   .0183   78.5     —

AFFECTED
  Product     Versions                    Fixed
  python-pip  fixed in python-pip 21.1 –  —

TIMELINE
  Jun 1   Reserved by redhat
  Nov 10  Published (CNA: redhat)
  Oct 8   ENRICHED — CVE-2021-3572 (python-pip). Received CVSS 5.7 and CPE data from NVD.

CWE-20 · CNA: redhat · CVSS v3.1 · 4 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 1, 2021	Reserved	Reserved by redhat
November 10, 2021	Published	Published (CNA: redhat)
October 8, 2026	ENRICHED	ENRICHED — CVE-2021-3572 (python-pip). Received CVSS 5.7 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	python-pip	—	fixed in python-pip 21.1	—

Weaknesses

CWE-20

References (4)

https://bugzilla.redhat.com/show_bug.cgi?id=1962856 [Issue Tracking, Patch, Third Party Advisory]
https://security.netapp.com/advisory/ntap-20240621-0006/
https://www.oracle.com/security-alerts/cpuapr2022.html [Patch, Third Party Advisory]
https://www.oracle.com/security-alerts/cpujul2022.html [Patch, Third Party Advisory]

Authoritative record: CVE-2021-3572 at cve.org

Weaknesses: CWE-20

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-3572 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.