CVE-2026-26187
HighSummary
lakeFS to narzędzie open-source, które przekształca pamięć obiektową w repozytoria podobne do Gita. W wersjach przed 1.77.0 lokalny adapter bloków pozwalał uwierzytelnionym użytkownikom na odczyt i zapis plików poza ich wyznaczonymi granicami przechowywania.
Risk Assessment
Niewłaściwa walidacja ścieżek może prowadzić do nieautoryzowanego dostępu do plików w innych przestrzeniach nazw, co stwarza poważne zagrożenie dla bezpieczeństwa danych w organizacji.
Recommendation
Zaleca się aktualizację lakeFS do wersji 1.77.0 lub nowszej, aby usunąć tę podatność oraz zapewnić odpowiednią kontrolę dostępu do plików.
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Original NVD description (English source)
lakeFS is an open-source tool that transforms object storage into a Git-like repositories. Prior to 1.77.0, the local block adapter (pkg/block/local/adapter.go) allows authenticated users to read and write files outside their designated storage boundaries. The verifyRelPath function used strings.HasPrefix() to verify that requested paths fall within the configured storage directory. This check was insufficient because it validated only the path prefix without requiring a path separator, allowing access to sibling directories with similar names. Also, the adapter verified that resolved paths stayed within the adapter's base path, but did not verify that object identifiers stayed within their designated storage namespace. This allowed attackers to use path traversal sequences in the object identifier to access files in other namespaces. Fixed in version v1.77.0.