GHSA-6xv5-86q9-7xr8

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GHSA-6xv5-86q9-7xr8

Summary: SecureJoin: on windows, paths outside of the rootfs could be inadvertently produced

Details: ### Impact For Windows users of `github.com/cyphar/filepath-securejoin`, until v0.2.4 it was possible for certain rootfs and path combinations (in particular, where a malicious Unix-style `/`-separated unsafe path was used with a Windows-style rootfs path) to result in generated paths that were outside of the provided rootfs. It is unclear to what extent this has a practical impact on real users, but given the possible severity of the issue we have released an emergency patch release that resolves this issue. Thanks to @pjbgf for discovering, debugging, and fixing this issue (as well as writing some tests for it). ### Patches c121231e1276e11049547bee5ce68d5a2cfe2d9b is the patch fixing this issue. v0.2.4 contains the fix. ### Workarounds Users could use `filepath.FromSlash()` on all unsafe paths before passing them to `filepath-securejoin`. ### References See #9.

References: https://github.com/cyphar/filepath-securejoin/security/advisories/GHSA-6xv5-86q9-7xr8, https://github.com/cyphar/filepath-securejoin/pull/9, https://github.com/cyphar/filepath-securejoin/commit/c121231e1276e11049547bee5ce68d5a2cfe2d9b, https://github.com/cyphar/filepath-securejoin, https://github.com/cyphar/filepath-securejoin/releases/tag/v0.2.4