title: Mercurial configuration injectable in repo revision when installing via pip
description: When installing a package from a Mercurial VCS URL  (ie "pip install
hg+...") with pip prior to v23.3, the specified Mercurial revision could
be used to inject arbitrary configuration options to the "hg clone"
call (ie "--config"). Controlling the Mercurial configuration can modify
how and which repository is installed. This vulnerability does not
affect users who aren't installing from Mercurial.
problem types: CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
affected:
{
collectionURL: https://pypi.org
defaultStatus: affected
packageName: pip
product: pip
repo: https://github.com/pypa/pip
vendor: Pip maintainers
versions:
status: unaffected, version: 23.3
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL