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APFS treats certain Unicode equivalent filenames as identical (e.g., ß ↔ ss), while app builder performs no canonical normalization before validating or writing paths. As a result, a crafted ZIP archive containing:\r\n•\ta symlink entry named ss pointing to a target file, and\r\n•\ta regular file named ß containing attacker controlled data,\r\nwill cause the second write to follow the symlink and overwrite the target file.","Type":"Description","Title":"Develar's electron-builder allows arbitrary file overwrite"}]}}}