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CVE-2023-5752 — Mercurial configuration injectable in repo revision when installing via pip

Affected: Pip maintainers pip

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.

GHSA-mq26-g339-26xf — Command Injection in pip when used with Mercurial

Affected: PyPI: pip

When installing a package from a Mercurial VCS URL, e.g. `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 (e.g. `--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.

PYSEC-2023-228

Affected: PyPI: pip