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CVE-2026-7819 is a symbolic-link path traversal vulnerability in the pgAdmin 4 File Manager affecting versions before 9.15. The flaw stems from access-control logic in check_access_permission using os.path.abspath for path validation. While abspath normalizes relative path components such as '..', it does not resolve symbolic links. As a result, a later file-write operation could follow an attacker-controlled symlink and escape the intended storage boundary. An authenticated user with access to their own storage area could create a symbolic link within that permitted directory pointing to a location outside it, then trigger pgAdmin to write through that link to an arbitrary filesystem path reachable by the pgAdmin process. The fix replaces path validation with os.path.realpath for both source and destination paths, adds an _open_upload_target helper that opens the destination with O_NOFOLLOW to prevent leaf-component symlink traversal and reduce the check-to-open race window, and hardens created file permissions.
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A symbolic-link path traversal vulnerability in pgAdmin 4 File Manager that allows an authenticated user to induce writes outside their intended storage directory via symlink abuse.
A symlink-based path traversal vulnerability in the pgAdmin 4 file manager.
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Cross-references every affected SKU, including bundled OEM variants.
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