CVE-2023-5752

Local integrity impact via Mercurial revision option injection

Published Oct 24, 2023 · Updated Nov 3, 2025

Command injection in Python Packaging Authority pip before 23.3 allows local users to alter Mercurial clone configuration via crafted revisions. The Mercurial backend passed a revision as a separate -r argument, allowing option-like text to inject --config settings into hg clone and change which repository content pip installed. Exploitation requires a local user or build process to install from an attacker-controlled Mercurial URL; users who do not install from Mercurial are not affected, and the documented impact is repository and installation integrity rather than service disruption.

CVSS severity5.5
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Python Packaging Authority pip before 23.3 allows local users to alter Mercurial clone configuration via crafted revisions. The Mercurial backend passed a revision as a separate -r argument, allowing option-like text to inject --config settings into hg clone and change which repository content pip installed. Exploitation requires a local user or build process to install from an attacker-controlled Mercurial URL; users who do not install from Mercurial are not affected, and the documented impact is repository and installation integrity rather than service disruption.

The record

CVE
CVE-2023-5752
Published
Oct 24, 2023
Updated
Nov 3, 2025
Vendor
Python Packaging Authority
Product
pip
Classifications
CWE-77, T1195.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Python Packaging Authority · pipAffected versions are unavailable in this record.

Published CVSS scores

5.5Python Software FoundationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
3.3National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1195.002Compromise Software Supply Chain

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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