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GHSA-h672-p7h7-97v9

Rattler vulnerable to package cache path traversal via conda package build string

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-53956

Packages

EcosystemPackageAffectedFixed in
crates.io rattler_cache < 0.9.0 0.9.0
PyPI py_rattler < 0.24.0 0.24.0

Details

As written in the advisory (Markdown source, shown as plain text).

`rattler_cache` and `py-rattler` were vulnerable to package-cache path traversal when handling package metadata from conda channels. During cache materialization, the `ratter_cache` code used the package record `build` string as part of a cache key that was joined into a filesystem path. A malicious or untrusted channel could publish repodata with path separators or traversal components in that field, causing package contents to be written outside the configured package cache directory. The issue requires use of a malicious or otherwise untrusted conda channel. Curated channels that validate package metadata are not expected to allow malformed build strings of this form. Users should upgrade to a patched version and avoid untrusted conda channels.

References

External links from the advisory. They lead to third-party sites.