Impact Weblate repository-boundary validation relies on string prefix checks on resolved absolute paths. In multiple code paths, the check uses startswith against the repository root path. This is not path-segment aware and can be bypassed when the external path shares the same string prefix as the repository path (for example, repo and repooutside).

Patches https://github.com/WeblateOrg/weblate/pull/18847

References Thanks to m9nx4u for reporting this issue via HackerOne.