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CVE-2026-47425

Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write) PUBLISHED

Description (CNA)

Rattler is a library that provides common functionality used within the conda ecosystem. Prior to version 0.43.2, `EntryPoint::FromStr` in `rattler_conda_types` performs only `.trim()` on the `command` field before the linker joins it onto the install prefix and writes an executable Python script. A malicious `noarch:python` package can ship an `info/link.json` with an entry-point name containing `..`, `/`, `\`, or an absolute path; the resulting file is written outside the prefix (or clobbers an existing in-prefix entry-point such as `bin/pip`) with mode `0o775` on Unix and a copied launcher `.exe` on Windows. This affects the default install path of `pixi install`, `mamba install` via py-rattler, `rattler-build`, and any other consumer of the `rattler` install crate; no flag or post-link-script opt-in is involved. Version 0.43.2 contains a fix for the issue.

Affected (CNA)

Vendor / productVersions
conda / rattleraffected < 0.43.2
conda / py-rattleraffected < 0.24.0
conda / rattler-buildaffected < 0.65.0
prefix-dev / pixiaffected < 0.69.0

CWE

CWE-22, CWE-73

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.