CVE-2026-47425Rattler vulnerable to entry-point path traversal in noarch:python install (arbitrary file write)
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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
- 6.9 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-22, CWE-73
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Jul 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
conda rattler conda:rattler (from the name) | before 0.43.2 | CNA record |
conda py-rattler conda:py_rattler (from the name) | before 0.24.0 | CNA record |
conda rattler-build conda:rattler_build (from the name) | before 0.65.0 | CNA record |
prefix-dev pixi prefix_dev:pixi (from the name) | before 0.69.0 | CNA record |
References
- https://github.com/conda/rattler/security/advisories/GHSA-q53q-5r4j-5729x-refsource-confirm
- https://github.com/conda/rattler/commit/4f06eca89aa13209774d26dbac077c41b72bac7cx-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.