CVE-2026-47425— Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write)

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

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

对路径名的限制不恰当(路径遍历)

Conda rattler 路径遍历漏洞

Conda rattler是Conda组织的一个软件工具。 rattler 0.43.2之前版本、py-rattler 0.24.0之前版本、rattler-build 0.65.0之前版本和pixi 0.69.0之前版本存在安全漏洞，该漏洞源于`EntryPoint::FromStr`在`rattler_conda_types`中对command字段仅进行trim处理，恶意`noarch:python`包可利用包含`..`、`/`、`\`或绝对路径的entry-point名称，导致文件被写入安装前缀之外

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