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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| pip(PyPI) | 0 | 23.3 | N/A |
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